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How to Make a Popsicle Stick Catapult | STEM Activity

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Magic Triangles - Fun Math Puzzles with Increasing Difficulty

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What are the Chances? – A Probability STEM activity

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With ScratchJr, young children (ages 5-7) can program their own interactive stories and games.

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At SFI we believe in the ability of science, technology, engineering & maths to effect positive change in the world and drive a sustainable international economy. https://www.sfi.ie/engagement/discover-primary-science-and-maths/resources/stem-at-home/

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Favourite Maths Puzzles for children

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In February 2014, I asked my subscribers for their favorite math puzzle. This collection is the result-a list of puzzles chosen by teachers and parents! Most only require the four basic operations or not even that, so they work well for elementary school children and on up. I have divide the puzzles into ones that are geometric in nature and ones that are math & logic puzzles. The challenging puzzles are on their own page. I also list several good puzzle websites and books at the bottom of this page.

Jump to:

Puzzles with shapes & sticks
Math puzzles
Puzzle websites

Puzzles with shapes and sticks

1. Stardoku

This is for you kindergarten folks-a coloring Sudoku game! The stars in the same row and column must have different colors.

Stardoku game

2. Turn the fish

Move three sticks and make the fish to swim in the opposite direction. You can see the solution and play aninteractive version of this puzzle at Puzzles.com (and many others too!).

3. Pigs need their pens

Farmer Black raises pigs and was raising them in modular pens, He currently has 6 pigs in the following arrangement:
+---+  +---+  +---+  +---+  +---+  +---+
|   |  |   |  |   |  |   |  |   |  |   |
+---+  +---+  +---+  +---+  +---+  +---+

He needed some walls for another project so he rearranged the pins like this:

+---+---+---+---+---+---+
|   |   |   |   |   |   |
+---+---+---+---+---+---+

He then found out he need 7 more wall pieces to finish his project. How did he rearrange the pens so that there was only 1 pig per pen?

See the solution.

4. Coin triangle

5. Dots in a square
This is one of my favorites! It is a simple puzzle, but illustrates beautifully the idea of "thinking outside the box."

Join all the dots using four straight lines and without lifting your pencil.

Click here for the answer, but think about it first!

6. Pentagon & star

How many triangles are there?

See a hint and the solution at Cool Math 4 Kids site.

7. Tower of Hanoi

Tower of Hanoi is an old favorite puzzle where you move disks from one tower to another. If you've never played, try thisonline version. You can either play it yourself, or let the computer solve it.

8. Trees in rows

A gardener planted 10 trees in five rows. Each row had four trees in it. How did he do this?

Click here for the answer, but don't peek too early-give it a good honest try first!

9. A matchstick puzzle

Move 3 matches to show 2 squares.

See the solution here

Math puzzles

1. Kenken
In Kenken, you need to place the counting numbers in the squares just like in Sudoku, but additionally, you are given boxes with clues with math operations. The numbers you place in each box have to make the "clue" number using the given operation.

So, Kenken is an excellent game to practice the four operations and logical thinking. Lower elementary children can use addition/subtraction and others can use multiplication/division or all four operations.

Play Kenken online here. You can choose the size of the game, operations, and the difficulty level.

2. Numbers in a triangle

Put the numbers from 1 to 9 in the circles so that the sum of the numbers on each side of a triangle is the same.

At CoolMath4Kids you can view a hint and the solution.

3. Kakuro
Kakuro puzzles are "cross-sum" puzzles-like mathematical crossword puzzles. Each "word" must add up to the number provided in the clue above it or to the left.

Download 5x5 Kakuro puzzles at KrazyDad. Other sizes exist also.

4. Same number - or twice as many

Here is a puzzle that seems simple, but is a good critical thinking challenge for lower elementary school kids. You can easily reword it for example to have two flocks of birds in two trees.

Farmer Brown and Farmer Green were ruminating one day on the fence between their farms. Farmer Brown says, "You know I was just thinking. If you gave me one of your cows, then we would have the same number of cows." Farmer Green replies, "If you gave me one of your cows, then I would have twice as many as you!"

How many cows does Farmer Brown have and how many cows does Farmer Green have?

Click here for the answer

5. More than two animals

This puzzle is fromGrace Church School's collection of Abacus problems 2013-2014 for grades 3-8. The site does not supply the answers, but students are encouraged to submit their answers and they will receive a reply.

6. Brick's weight

This is well-known problem that sounds so simple, yet it fools many people!

7. Average Miles per Hour

A car is going up a hill. The hill is one mile long. The driver goes up the hill at an average speed of 30 miles per hour. When the driver reaches the top of the hill, he starts down the other side. The downhill side is also one mile long. How fast must the driver go down the hill in order to average 60 miles per hour?

Solution

It is impossible to average 60 miles per hour. An average speed of 60 miles per hour requires two minutes to cover two miles. The first mile was covered at 30 miles per hour. This means that two minutes were used to travel that mile. Hence there are no minutes left to cover the second mile.

Source: Math Games and Number Tricks (Formerly published as Math Puzzles and Oddities) by Robert Yawin

Hide answer

8. Legs in the bus

1. There are 7 girls on a bus.
2. Each girl has 7 backpacks.
3. In each backpack, there are 7 big cats.
4. For every big cat there are 7 little cats.

How many legs are on the bus, not counting the driver?

Solution

There are a total of 10,990 legs.

1. There are 7 × 7 × 7 = 343 large cats. They have 343 × 4 = 1372 legs.

2. There are 7 × 7 × 7 × 7 = 2401 little cats. They have 2401 × 4 = 9604 legs.

3. There are 7 girls. They have 14 legs.

In total we get 1372 + 9604 + 14 = 10,990 legs.
Hide answer

9. How can these be equal?

Here's a short but puzzling puzzle that someone sent for the contest:

10. Coconut trader

11. Milkman's Containers

A milkman has an 8-liter container full of milk, and also two empty containers that measure 5 liters and 3 liters. He needs to deliver 4 liters of milk to a customer.

The milkman has no other spare containers and no way to mark any containers. He does not want to pour milk away. How will he measure the 4 liters of milk?

Solution

1. Fill the 5-liter container.

2. Pour out from the 5-liter container to the 3-liter one until it's full. The 5-liter container now has 2 liters left.

3. Pour all the milk from the 3-liter container back to the 8-liter container.

4. Pour the 2 liters from the 5-liter container to the 3-liter container. It has therefore just one liter of space left!

5. Fill the 5-liter container.

6. Pour out from the 5-liter container enough milk to fill the 3-liter container (which already has 2 liters). You will have 4 liters left in the 5-liter container.

Hide answer

12. Farmer and his ducks

13. Number puzzles with many operations Enter each of the numbers from 1 to 9 in the squares, each one only once. The order of operations doesn't apply! These puzzles are available in four different levels of difficulty.

Number puzzles

14. Jigsaw puzzle for fractions, decimals, and percents

You candownload a printable jigsaw puzzle to practice equivalent fractions, decimals, and percents, published here by permission from the creator Becky Colvin. You need to cut it out first.

15. Folding tissue paper

We fold a piece of paper, 1/10 mm thick, in a way as if we were to try and fit it in a little pocket: in half, in half again, in half once more, and so on.

Let's assume that in our minds (because in reality it's impossible - try it yourself!) we have folded our piece of paper 50 times. How thick will such a folded paper be? If you don't want to calculate, at least make an educated guess!

Solution.

It is 1/10 × 2 ⁵⁰ mm thick.
Converted to kilometers, we get that the thickness is (1/10) × 2 ⁵⁰ × (1/1000000) km = 112,589,991 km thick.

Those who do not know this problem usually assume that the stack will not be thicker than up to a couple of meters. However, the thickness of a piece of paper folded in half 50 times will be surprisingly big, more than 112 million kilometers! (The distance from the Earth to the Sun is about 150,000,000 km).

But... it is not physically possible to do this. The length of paper you would need for this folding would be many light years long...!!! It is given by the equation

L = π/6 · t · (2 n + 4)(2 n − 1)

where t is the thickness of the material and n the number of folds. ( Formula by Britney Gallivan)

Hide answer

Even more puzzle websites & books

The list above already has many links to websites with puzzles, but here are some more.

Challenging puzzles sent to my puzzle contest.

The Moscow Puzzles: 359 Mathematical Recreations
Our whole family enjoys this book! It is divided into 14 chapters, each with different kinds of puzzles, such as matchstick puzzles, dominoes and dice, divisibility, cross sums and magic squares, "Measure Seven Times Before You Cut" (dissection puzzles), "With Algebra and without It" (tricky word problems), and so on. The puzzles and brainteasers range from simple fun riddles to difficult problems, yet none requiring advanced math. They are almost always illustrated and often presented as amusing stories. The book was originally published in Russia in 1956. Martin Gardner has edited the book to make it as easy as possible for an English-reading public to understand, while carefully retaining nearly all the warmth and humor of the original. Price: About $5 used, about $9 new.

Bedtime Math
Fun and lively daily math problems centered around real-life topics and offered in three levels: Wee Ones, Little Kids, and Big Kids. You can also get Bedtime Math problems in a free app.

Sally's Hexagon Number Puzzles
These are "number pyramids" where you get each number by adding the numbers just below it. Puzzles increase in difficulty so that grade 4 puzzles use negative numbers and grade 5 puzzles use decimals.
1st Grade - 2nd Grade - 3rd Grade
4th Grade - 5th Grade

Brainteaser puzzles from ThinkFun
Twelve printable (PDF) puzzles for the whole family. Most are visual kind of puzzles where you rearrange pennies and sticks into another shape.

MathMania
A children's magazine that is packed full of puzzles, mazes and teasers specially created to appeal to kids ages 7 and up.

Matchstick Puzzles
A large collection of puzzles where you need to rearrange matches.

Chess Snake Puzzles
You draw a snake (or a path) on a 5x5 grid from the lower left square to the upper right square. The grid has some chess pieces, and each piece attacks the same number of segments of the snake.

MathSphere Maths Puzzles
About two dozen printable puzzles (PDF) for upper elementary children.

Math Riddles
Fun riddles based on math concepts.

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In February 2014, I asked my subscribers for their favorite math puzzle. This collection is the result-a list of puzzles chosen by teachers and parents! Most only require the four basic operations or not even that, so they work well for elementary school children and on up.

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How to Make Simple Robotic Arm from Cardboard!

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#1 BEST Paper Plane - Circle Paper & Straws Airplane - DIY Paper Toys (S.T.E.M.)

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DIY Bubble Recipe & Giant Wands How To   so easy

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Looking for STEM projects and challenges for kids? Building and engineering projects are valuable for developing thinking skills and encouraging the ability to design and create.
The tough part, though, is that teachers often have to purchase the materials at their own expense. At home, we don't need to supply enough materials for a class, but with five kids to feed, house, and educate we can't constantly be buying special materials either. Here's a collection of STEM engineering challenges that are fun and engaging, and that also make use of recycled or inexpensive materials.
ENGINEERING WITH PAPER
Let's start with projects that rely on a simple and readily available material - paper!

Which paper column can support the most weight? from Creekside Learning. The result was not what I expected!

Build a Newspaper Fort - This is amazing! And all you need is newspapers and tape. Granted, newspapers are harder to come by than they used to be, but maybe you can find a friend or a dentist office that will save some for you!

Build a Conveyor Belt from Pink Stripey Socks. Use a milk carton and paper, and a few other simple materials!

Make some Paper Building Blocks from Babble Dabble Do. So simple and colorful.

Paper Airplane Challenge from Kids Activities Blog. Which plane can carry the most cargo?
BUILDING WITH SIMPLE MATERIALS
This one is our most popular STEM post: 4 Engineering Challenges with Craft Sticks, Cups, and Cubes. I enjoyed this as much as the kids, and it works for all ages. It's amazing what kids can construct with these simple materials, and they'll be learning a ton about balance and center of gravity.

If you like that one, also try 5 Engineering Challenges with Clothespins, Craft Sticks, and Binder Clips. These materials make an awesome building kit! We have ours stored in a plastic shoebox.

Turn a Large Cardboard Box into an EPIC Marble Run - This is seriously awesome.

Make a marble run on a smaller scale - Shoebox Marble Run. Shoe boxes, craft stick, and hot glue - that's it! Again, you'll be amazed what you can create. The post has lots of inspiration.

Build a Bridge out of Straws and Straight Pins. Great classroom challenge. The straight pins work well for holding the straws together.

How strong is spaghetti? Test how much weight this material will hold! This is an impressive STEM challenge!

Build a Marble Run with Play Dough - YES, play dough! Grab a cookie sheet and try this fun challenge!

Collect some sticks and try building a raft that floats! From Kids Craft Room.

Build a Straw Roller Coaster for a ping pong ball to roll down! Drinking straws and hot glue, and that's it. Use a low temp gun and kids can make this themselves.

Build a Labyrinth Game with a cardboard box and craft sticks. The finished game is seriously addicting!

Create a Hexbug Maze with Straws from Buggy and Buddy. This is a great cooperative project for groups of kids.

It's also fun to build a Hexbug Maze with Cardboard and Craft Sticks.
EXPLORE FORCE AND MOTION - CATAPULTS AND MORE!
Make Working Gears with Popsicle Sticks - such a fun mechanical project.

Build a Popsicle Stick Catapult. You probably have all the supplies on hand to make this fun catapult!

Balloon Pinwheel - This is a great way to demonstrate Newton's third law of motion!

Make a Ping Pong Ball Launcher with a plastic bottle. Fun toy.

Create an Epic Bottle Rocket out of a 2 liter soda bottle. It flew higher than our house!

Build a Tissue Box Catapult and then launch small Lego bricks or ping pong balls or marshmallows.

Use marbles and a ruler to explore the transfer of energy. A favorite science experiment.
MAGNETISM
I think my kids would tinker with these Magnetic Sculptures all day long! What a great idea from Babble Dabble Do.

Use magnets to create a Magic Spinning Pen.

Make a Magnet Powered Car from Science Kiddo. This is a fun idea!

Defy Gravity with Magnetsfrom Buggy and Buddy! You can probably set this up with things you have on hand.

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30+ Awesome STEM Challenges for Kids (with Inexpensive or Recycled Materials!) - Frugal Fun For Boys and Girls

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Looking for STEM projects and challenges for kids? Building and engineering projects are valuable for developing thinking skills and encouraging the ability to design and create. The tough part, though, is that teachers often have to purchase the materials at their own expense.

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How to make a Rubber Band powered Car - Air Car

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Select your class level to see a range of resource packs and suitable activities.

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Use these resources to encourage learning of maths and the development of problem solving strategies in early learners. As primary school aged children gain familiarity with early maths concepts, provide them with opportunities to build a strong foundation for a successful future. The hands-on tools included in these resource packs will help young students as they explore essential maths concepts such as counting, measurement, and geometry.

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Primary Schools "The goal of early childhood education should be to activate the child's own desire to learn." - Maria Montessori Use these resources to encourage learning of maths and the development of problem solving strategies in early learners.

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10 engineering activities to try

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Weekly STEM challenges to keep you creating from the comfort of your own home. Try your hand at a range of different projects, with new challenges announced every Wednesday.

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Iron, Coal, and Steam

Early in the 1700s two English inventors set the stage for the Industrial Revolution. This was a period of great growth of industry. Abraham Darby discovered that a coke-burning furnace produced good iron. Coke is a form of coal. Thomas Newcomen invented a pump that kept coal mines from filling with water. A steam engine powered the pump.

With these developments, coal and iron production expanded rapidly. Iron remained the main metal for building and toolmaking until the late 1800s. At that time steel (a mixture of iron and carbon) began to replace regular iron.

Meanwhile, in the late 1700s steam began to replace wind and water as the major source of power. In a steam engine, burning coal heated water. The boiling water produced the steam that ran the engine.

Machines and Factories

Other inventions also sped up the production of goods-especially textiles, or cloth. By the early 1800s such machines as the power loom made cloth faster and easier to weave. Cloth making moved from homes and workshops into large mills and factories. The factories used steam engines to run many of their machines. Other industries followed this model.

Transportation

Between 1765 and 1782 James Watt of Scotland greatly improved the steam engine. John Fitch of the United States ran a steamboat as early as 1787. In 1803 Richard Trevithick created the steam locomotive.

In 1856 Henry Bessemer of England invented an improved way of making steel. People began using steel to build railroads, ships, and bridges. (People also used steel to build the first skyscrapers.)

In 1876 the German engineer Nikolaus August Otto built a gasoline-powered engine. By 1885 two Germans named Gottlieb Daimler and Karl Benz had used gasoline engines in the first successful automobiles.

Electricity

In the first half of the 1800s scientists learned to generate, or produce, electricity. In 1835 Samuel F.B. Morse of the United States used electricity in his telegraph. This invention allowed people to communicate across long distances. In 1876 the U.S. inventor Alexander Graham Bell invented the telephone, which also used electricity. Thomas Edison demonstrated the electric lightbulb in 1879. Electric power also came to be used for electric railways in cities.

Petroleum and Chemicals

In the second half of the 1800s petroleum, or oil, became a major power source. Edwin Laurentine Drake drilled the first successful oil well in the United States in 1859. Petroleum can be made into gasoline, fuel oil, and many other products.

In 1856 William Henry Perkin of England made a breakthrough in the field of chemistry. Starting with coal tar, which is made from coal, he invented the first synthetic, or artificial, dye. Coal tar and petroleum proved to be useful in the making of drugs and plastics as well.

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Iron, Coal, and Steam Early in the 1700s two English inventors set the stage for the Industrial Revolution. This was a period of great growth of industry. Abraham Darby discovered that a coke-burning furnace produced good iron. Coke is a form of coal. Thomas Newcomen invented a pump that kept coal mines from filling with water.

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Virtual Museum: 12 ways to explore from home

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Delve into the Museum from home with a virtual self-guided tour, an interactive experience about blue whales and audio guides narrated by Sir David Attenborough.

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You can search the internet for some of the best technology projects for kids, but we have done the hard work for you! This list is sure to get those creative juices flowing! Use this set of 28 Days of STEM Activities and STEAM Activities for Kids (and a few more, too!) posts to excite the kids all year long. Learn using STEM and STEAM (science, technology, engineering, art, & math) concepts while you explore forces of motion, chemistry, sound, and so much more!

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.

20 Technology Projects for Kids

Kids love all things tech! Help your creative kids with coding, robots, and more! You'll find all kids of great science, technology, engineering, art, and math ideas woven into this set of technology projects for kids. Bookmark this page for great problem solving ideas you can try this year!

Circuits Cards and More Circuit Activities for Kids

These circuit projects are sure to teach kids all about electric circuits!

How to Make a Lighting Bug Circuit Paper Card || Left Brain Craft Brain - This little bug is so much fun! It's sure to bring a little light to your next circuit activity!

How to Make a Coin Battery || Teach Beside Me - Who knew? Learn how to stack coins to make a battery. You want to be sure to try this with adult supervision.

Light Up Circuit Valentines || Left Brain Craft Brain - Show your love for your friends and family with a sweet light up Valentine!

Make a Light Up Paper Circuit Thaumatrope || One Time Through - We are fascinated with thaumatropes! This time your STEAM kids can make a light up thaumatrope with just a couple simple materials.

Fruit Stand Circuits || Left Brain Craft Brain - Who knew? Your favorite fruit has an electrical charge! This is a really awesome science fair project too!

Paper Circuit Cards || Science Kiddo - I love this one! You'll want to grab some copper tape for this easy circuit card. Make your own creations in a couple minutes!

Circuit Flowers || STEAM Powered Family - These circuits are gorgeous enough to give as a gift!!

Light Up May the Fourth Be With You Cards || Left Brain Craft Brain - You know we are HUGE Star Wars fans and we make these every year.

Electric Circuit Kids Valentine || JDaniel4's Mom - Your Valentine is going to be so surprised with this light up reminder of how much you care!

Light Up & Pop Up Circuit Flower Card || Left Brain Craft Brain - Who wouldn't love a light up flower card? This is perfect to add to your technology projects for kids this spring!

Check out the May the Fourth Be With You Circuit Card in action!

Bots and More

Your going to love this set of STEM ideas for busy kids! Bots are so fun to make with kids!

Minion Brush Bot || Left Brain Craft Brain - Aren't Minions awesome? If you have a little Minion fan at home, make your own Minion bot is just a couple minutes!

Code Your Own Art Bo t || Kids STEAM Lab - Art bots are the wave of the future! Grab this simple

Build a Hexbug Maze with Straws || Buggy and Buddy - Add this one to your list of technology projects for kids! Kids will find new life with their old bot with a DIY maze!

How to Make a Modern Art Steady Hand Game || Left Brain Craft Brain - We are all about amazing STEAM ideas here! This is one of my favorite learning activities for creative kids with an open ended result.

Coming Soon... A Brush Bot Series from Left Brain Craft Brain and Babble Dabble Do!!

Computers

We have had a lot of fun with computers and computer parts over the years. Here are some of our favorite projects!

Computer Destruction || Left Brain Craft Brain - You know you want to give this a try! Don't throw out that old computer. Instead us it to explore!

8 Ways to Play with an Old Keyboard || Left Brain Craft Brain - For some reason, old keyboards seem to find their way to our house. We had so many! So we left our preschooler explore and learn.

Play Dough Robots || Left Brain Craft Brain - This is sure to be a favorite for your kids! Grab your favorite play dough recipe and old computer parts for this open ended play idea.

Computer Part Mandalas || Left Brain Craft Brain - Teach kids about the inner workings of computers while creating a quirky (or should I say QWIRTY?) mandala.

Coding Activities for Kids

Coding is the language of the future! Here are some unique ways to help them learn.

Even More! Fun Technology Projects for Kids

Not sure where to start with coding? I wasn't either until I started collecting ideas! Here's the very best Coding for Kids activities for you to get started with today.

Circuits are our little fascination around here. I know it can be a little daunting for others so I put together a great list of Circuit Activities for Kids! AND a special little freebie for you to jump start your circuit learning.

Click Here to Download the Introduction to Simple Circuits Activity

More Hands-On Projects for Kids

Looking for some more STEAM inspiration that use can use right now? Instant gratification style? Check out STEAM Kids: 50+ Hands-on Science, Technology, Engineering, Art, & Math Hands-On Projects for Kids ebook! It's packed full of a year's worth fun learning activities that will wow the boredom right out of your kids.

28 Days of STEM Activities and STEAM Activities for Kids

These projects are part of an amazing, month-long series of hands on STEM and STEAM projects for kids. Click on over to 28 Days of STEM Activities and STEAM Activities for Kids for 60+ FREE science, tech, engineering, art, and math projects from 30+ education writers. All ready to get your kids excited to learn.

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20 Technology Projects Your Kids Will Love

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You can search the internet for some of the best technology projects for kids, but we have done the hard work for you! This list is sure to get those creative juices flowing! Use this set of 28 Days of STEM Activities and STEAM Activities for Kids (and a few more, too!)

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Ms McClafferty's Colourful Tricks Eye Experiment

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Ms McClafferty's Colourful Tricks Eye Experiment

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Springtime, brings sweet smelling flowers, buzzing insects and of course, egg hunts! In recognition of all things spring, this Science Experiment examines chemical reactions using an egg. Follow the simple steps below to completely remove the shell from an egg, without breaking anything. All it takes is some patience and science!

Materials Needed

1 raw egg

Large glass or non-metallic container

Vinegar

Experiment Directions

1. Start by submerging one raw egg in a container full of vinegar. You should see mini bubbles forming around the shell. This is a chemical reaction taking place. Take pictures to see compare how the egg changes.

2. Leave the egg in the container of vinegar for 24 to 48 hours. You might notice a white film on the top of the vinegar as the shell breaks down. This is normal.

3. On the second day, throw away the vinegar in the cup and replace with fresh vinegar. We'd recommend using your hand or a strainer to "catch" the egg, and not a spoon. Spoons can break the egg. Put the cup and egg aside for another full day and don't disturb the egg. Take another picture to compare at the end.

4. On the third or fourth day, pour off the vinegar and carefully rinse the egg under water. Be gentle with the egg. The shell should be completely gone, and you should see the membrane that surrounds the white and yolk.

5. Examine the way it moves. Shine a flashlight through the egg and see what happens. What size is the egg now? How does it look different from the beginning?

What Happened?

Eggshells are made of calcium carbonate and vinegar contains acetic acid. The acid reacts with the calcium carbonate and makes calcium acetate plus water and carbon dioxide. This is what all those wee bubbles are. This reaction eats through the shell leaving behind a "naked" egg.

Safety Note

Remember to wash your hands after handling the naked egg at any point in this experiment. Eggs can contain salmonella, so scrub away.
Do not eat this egg. This is not a safe way to prepare an egg for consumption.

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Springtime, brings sweet smelling flowers, buzzing insects and of course, egg hunts! In recognition of all things spring, this Science Experiment examines chemical reactions using an egg. Follow the simple steps below to completely remove the shell from an egg, without breaking anything. All it takes is some patience and science!

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Ms. Lynch - Can you put a Skewer through a Balloon?

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Ms. Lynch - Can you put a Skewer through a Balloon?

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Do you know how to put a skewer through a balloon ? It's surprisingly easy.

What you'll need to push a skewer through a balloon

Washing up liquid/Dish soap

Skewer - take care these are sharp

Balloon - experiment with different size and shaped balloons

First we tried using vaseline rubbed on the skewer and the balloon, but although we could get the skewer in, the balloon always popped on the way out.

We tried again using washing up liquid and it worked!

You need to pierce the balloon through the bottom and top where the rubber is thickest, and then push the skewer slowly but firmly into the balloon.

Top tip for pushing a skewer through a balloon

Poke the skewer through the part of the balloon where the balloon material is under the least strain, this is generally the two ends.

How does it work?

Balloons are made up from long chains of molecules called polymers, which are elastic enough to allow the balloon to stretch. A balloon is made up of molecule chains called polymers. The dish soap reduces surface tension on the balloon helping the skewer pierce it.

The polymer chains of the balloon close around the skewer which stops the air escaping and allows the balloon to stay inflated.

Try piercing the ends of the balloon first as this is where the balloon is under the least strain and so strongest.

Where would you pierce the balloon if you wanted it to pop?

More Easy Science Magic Tricks

Ten magic science tricks

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Science Magic - How to put a skewer through a balloon - Science Experiments for Kids

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Do you know how to put a skewer through a balloon ? It's surprisingly easy. Washing up liquid/Dish soap Skewer - take care these are sharp Balloon - experiment with different size and shaped balloons First we tried using vaseline rubbed on the skewer and the balloon, but although we could get the skewer in, the balloon always popped on the way out.

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To Help Kids Learn & Have Fun During COVID-19

Most Schools are closed, and you are looking for something different and want a break from the schoolwork. Kitchen Science is a great way to explore science in your own kitchen. It teaches kids that science doesn't require expensive and hard to find chemicals or a fancy lab.

We have listed our favorite experiments below with materials you can use at home with the family. View each experiment to see the steps and learn the science behind the different hands-on projects.

Don't Miss Our Online Classes!

We also have our live classes on Kitchen Science! Kids can experiment with us live online with our Science Teacher. Students learn about the science behind each hands-on experiment, can interact with other students, and ask questions. Registration is now open!

Register for Our Kitchen Science Online Classes!

Kitchen Science Experiments

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Kitchen Science Experiments for Kids! - SciGenius

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To Help Kids Learn & Have Fun During COVID-19 Most Schools are closed, and you are looking for something different and want a break from the schoolwork. Kitchen Science is a great way to explore science in your own kitchen. It teaches kids that science doesn't require expensive and hard to find chemicals or a...

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Weekly STEM challenges to keep you creating from the comfort of your own home. Try your hand at a range of different projects, with new challenges announced every Wednesday.

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The development of the Kitchen Chemistry videos is a joint venture between the School of Education and the School of Chemistry at the National University of Ireland, Galway (NUI Galway). The venture was developed with EXPLORE funding. EXPLORE is where NUI Galway students and staff partner up and deliver innovative ideas. The motivation behind the Kitchen Chemistry videos is to promote science among primary school students. The six video series and associated teacher resource pack expands on current scientific outreach efforts by the School of Chemistry and also the recent Science Hook series (freely available on iBook or web platform, www.sciencehooks.scoilnet.ie) developed in the School of Education.

The Kitchen Chemistry resources offer primary teachers a collection of videos that capture novel and engaging aspects of chemistry-based science topics. The collection is also available trí Ghaeilge. This teacher pack provides details regarding the six videos. The pack provides: a methodology, a simple explanation of the science, extension activities, and worksheets for early, middle and upper years. Scoilnet.ie has facilitated and supported the production of a Kitchen Chemistry website.

This teacher pack was co-authored by Dr Veronica McCauley, Martin McHugh, Laura Finnegan (School of Education), Nicole Walshe, Christine Conway (School of Chemistry) and consultant teacher Sara McGeachy (Clonoulty Central National School, Co. Tipperary).
Kitchen Chemistry Videos - Teacher Resource Pack

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The development of the Kitchen Chemistry videos is a joint venture between the School of Education and the School of Chemistry at the National University of Ireland, Galway (NUI Galway). The venture was developed with EXPLORE funding. EXPLORE is where NUI Galway students and staff partner up and deliver innovative ideas.

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How to Make a Milk Carton Pirate Ship - PART 1: ScrapKins DIY for Kids

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Here's a collection of awesome LEGO building ideas that will inspire any LEGO® fan! This post is full of 100+ brick building challenges and instructions. Build characters, animals, machines, and more.
We love LEGO® bricks because of the open-ended fun and imagination they inspire! There are so many benefits to LEGO® building such as hand-eye coordination, logic, creativity, and problem solving.
This post was updated September 10, 2019 Here is how this post works. This post is a collection of LEGO building ideas, all in one place, but each one has its own separate blog post. LEGO® Machines and STEM Learning: See each project in more detail by clicking the links below.
Build a LEGO Lock & Key Safe - Two ways to build a little LEGO box that actually opens with a key! Instructions in the post.

Build a Balloon Powered LEGO Car - Build a car that is propelled forward by air rushing out of a balloon. Great science project! This demonstrates Newton's 3rd Law of Motion.

Build a LEGO Catapult (to shoot those little plastic LEGO balls, or something similar). Instructions in the post.

Engineering with LEGO and Water - Build a river with flowing water and a working waterwheel. Great for the warm weather months. (And it gets your LEGO clean at the same time - ha ha!)

Rocket Powered LEGO Car - This car is powered by an Alka Seltzer reaction inside a plastic bottle.

Rubber Band Powered LEGO Car - Build a car that is powered by a rubber band that you can wind up. Instructions in the post.

LEGO Marble Run - this marble run is truly epic! The post shows kids how to build some really neat features on their marble run, and there's also a video demonstration.

LEGO Spinning Tops - this will keep kids busy for hours. Perfect to do with a group, as kids will enjoy making their tops "battle" each other!

Learn about Simple Machines with LEGO Pulleys - This project will allow kids to understand and feel the mechanical advantage that pulleys provide.
LEGO Bridge Building Challenge
Build Wind Powered LEGO Contraptions - This was a favorite activity! Use an electric fan to power your LEGO creations.

LEGO Demolition Derby - Fun!
LEGO® Around the House
Build a LEGO Balance - and actually compare the weights of items.

Make a LEGO Photo Frame - Use bricks to build a message on this fun frame! Simply begin with a wood craft frame. The post has all the details!

Build some LEGO night lights - these really light up! Use battery powered tea lights for a safe and fun option.

LEGO Desk Organizer - with a charging station!

Minifigure Cable Holders - For your phone charger, etc. These are so fun!

Build a LEGO Candy Dispenser - This machine really dispenses a little handful of M&M's! One of our most popular projects ever.

Here's another way to build a LEGO Candy Machine - this one dispenses Starbursts one at a time with a clever mechanism.

Build a LEGO Card Holder - to help young kids with card games. Love this idea from A Mom with a Lesson Plan.
Build and Play with LEGO®
Make a LEGO Mosaic Letter - fun for any LEGO fan's room!

Make some Duct Tape LEGO Capes - perfect for replacing missing capes or adding accessories to any minifigure!

Stained Glass LEGO Challenge - this is one of my favorite building challenges! So pretty.
How to Build a LEGO Yoda How to Build a LEGO C3PO and R2-D2
How to Build a LEGO Unicorn - so whimsical and fun! Instructions in the post, and there's a parts list too!

LEGO Pictures - From Childhood 101. Love these!

How to Build LEGO Dogs - Hound type dog and Westie

More LEGO Dogs - Dachshund and Mastiff

How to Build LEGO Pandas - Pandas are some of my favorite animals!

How to Build LEGO Cats - Build posable cats that are so adorable! Instructions in the post.

Make a LEGO Zipline - from Little Bins for Little Hands

Build a LEGO Racetrack for Hot Wheels Cars - Release all the cars at once!

How to Build LEGO Minions - Another favorite! With instructions in the post.

LEGO Photography - Create hilarious or dramatic scenes with mini figures and then take pictures!

LEGO Hearts - from Little Bins for Little Hands

Inspired by Big Hero 6! LEGO Baymax Building Instructions

Inspired by How to Train Your Dragon - Toothless (Night Fury) Building Instructions

and Hookfang (Monstrous Nightmare) Building Instructions

20 LEGO Projects for Beginners - SO many fun LEGO® building ideas! Build a drum set, a piano, llamas, vehicles, and more.

17 Beginner LEGO Projects - All of these projects use pieces from the LEGO® Classic Creative Building Set.
Build the Monarch Butterfly Life Cycle with LEGO
20 Simple LEGO Projects - All of these projects use pieces from the Small and Medium LEGO® Classic Tubs, so this is a great way to get started with LEGO®! (Links to the tubs in the post.)

Build a LEGO track for Hexbugs - Favorite!

LEGO Ice Excavations from Lemon Lime Adventures
LEGO® Games
LEGO Nerf Targets - Combine two favorite toys with this fun building challenge!

LEGO Party Games - This is a great collection of realistic (not over-the-top Pinterest) ideas.

LEGO Family Fun Night from Not Consumed - simple games!

Printable LEGO Board Game from A Mom with a Lesson Plan

LEGO Tic Tac Toe from Kids Activities Blog. Turn it into a take-along kit by putting all the pieces in a bag!

Build a Board Game out of LEGOs - Design your own board game with a working game spinner. This is the perfect project for a rainy day!

Build a LEGO Chess Set - This is really cool!

Build a LEGO Skittles Game from Little Bins for Little Hands
LEGO® Building Ideas for Holidays and Seasons
LEGO Timed Building Challenges - Like Pictionary, but with LEGO®!

Build LEGO Chicks, Bunnies, and Butterflies - Adorable spring projects that are not difficult to build.

Spring LEGO Projects to Build Fall Tree LEGO Wall Art
7 Ideas for a LEGO Easter Egg Hunt - These are fabulous ideas for an Easter egg hunt, especially if you want to keep it candy-free.

How to Build LEGO Snowflakes - there are so many ways to make these, and the designs are so beautiful. Perfect building challenge for a group.

LEGO Christmas Projects -

We have SO many LEGO Christmas building ideas! You can find most of them here, as well as a printable version: LEGO Christmas Ideas

Five Christmas LEGO Projects - with Building Instructions

This is my FAVORITE Christmas Countdown - Build a LEGO Advent Calendar with Doors that Open.

LEGO® Storage and Organization DIY Wooden Crate Minifigure Display
Three Ways to do a LEGO Advent Calendar - This was SO fun and might become a tradition at our house!

This is our LEGO® table, and we love it! Find all the details here - IKEA Storage LEGO Table.

Affordable LEGO Organization from Little Bins for Little Hands

Cheap & Easy LEGO Storage from Happiness is Homemade. I like these little bins!

37 Genius LEGO Storage Ideas from Kids Activities Blog.
WHEW! That's a lot of LEGO® ideas!
Magnetic Minifigure Display - I like this idea! The mini figures are magnets, but can also be taken down and played with anytime.
LEGO® is a trademark of the LEGO® group of companies which does not sponsor. authorize, or endorse this site.
Also, be sure to check out our LEGO® book - Awesome LEGO Creations with Bricks You Already Have. This book makes a perfect Christmas or birthday gift, and it's a great price for kids to take as a gift to a birthday party. The book is full of 50 new projects with parts lists and step-by-step instructions.

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100+ Lego Building Projects for Kids - Frugal Fun For Boys and Girls

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Here's a collection of awesome LEGO building ideas that will inspire any LEGO® fan! This post is full of 100+ brick building challenges and instructions. Build characters, animals, machines, and more. We love LEGO® bricks because of the open-ended fun and imagination they inspire!

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Online maths games

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All Math Games and Activities

Place Value Games and Activities

Addition Games and Activities

Addition and Subtraction Games

Multiplication Games and Activities

Multiplication and Division Games

Decimal Games and Activities

Order of Operations Games

Integer Games and Activities

Prealgebra Games and Activities

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Math Games | Fun Games for Kids | Math Playground

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Math Playground has more than 500 math games, number puzzles and logic games!

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Make your own pinwheel

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Paper or cardstock

Scissors

Glue stick

Crayons or markers

Pencil with eraser

Push pin

Bead or small button (optional)

1Print out the template.

Print out this flower pinwheel template on A4 or Letter size cardstock. If you want a two-toned flower pinwheel, use different colors of cardstock for each page.

6Glue all tips at the center.

Repeat Step 5 with the remaining four tips, working from one adjacent tip to the next.

Once you have finished gluing all the tips at the center, your pinwheel will look pretty much like a six-petalled flower.

9Attach the pinwheel to a pencil.

Push the pin onto the eraser of a pencil. Leave a small gap between the paper and the eraser to allow the pinwheel to spin more freely.

As an option, you can put a bead or small button between the pinwheel and the eraser. This helps the pinwheel rotate better and prevents the pin's point from going through the other side of the eraser.

10Enjoy your pinwheel.

Finally, try blowing at the edges of the pinwheel to make it spin. Loosen the pin a bit if the blades do not rotate well. Enjoy!

These flower pinwheels are great spring and summer projects. Place them on the front porch, in the garden, or wherever it can catch a soft breeze. Remember though that these pinwheels are made of paper and will get damaged if they get wet.

Make longer stems.

If you want a longer handle, use a wooden dowel in place of a pencil. Pushing the pin into the wood is quite hard for kids so make sure an adult does this step.

You can decorate the dowel by painting it or wrapping its entire length with fabric ribbon, washi tape or colored masking tape.

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Flower Pinwheel | Kids' Crafts | Fun Craft Ideas | FirstPalette.com

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Paper or cardstock Scissors Glue stick Crayons or markers Pencil with eraser Push pin Bead or small button (optional) 1Print out the template. Print out this flower pinwheel template on A4 or Letter size cardstock. If you want a two-toned flower pinwheel, use different colors of cardstock for each page.

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Father’s Day card

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Necktie Greeting Card | Kids’ Crafts | Fun Craft Ideas | FirstPalette.com

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Create this easy necktie greeting card for dad on Father’s day. Printable necktie templates are included for easy crafting.

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Rubber band Helicopters

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Introduction: Rubber Band Helicopters - Engineering Project for Kids

The rubber band-powered helicopter is easy to construct, and with a little practice it can be flown 20+ feet into the air!

You can find the lesson plan, 1-page project sheet, and more project ideas at STEM-Inventions.com

How It Works:
1. Energy is stored in the sport rubber by winding the propeller.
2. When flown, the rubber band rapidly releases its energy by unwinding, which turns both the propeller blade and the paper cutout.
3. The paper cutout pushes against the surrounding air, which creates horizontal air resistance, or drag. This makes it harder for the cutout to spin. Because the cutout does not spin as easily, more energy from the rubber band is released into the propeller, which is much easier to turn. In this way, the paper acts like the rear rotor of a real helicopter
4. As the propeller spins rapidly, it begins to create lift by pushing air downward. With enough energy, the helicopter will fly in whatever direction it is pointing.

1 Person Made This Project!

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Step 1: Materials

Please message me to report broken links. All of these materials are used in my other Instructables for kids, so your purchases can be used across multiple projects.
You can find an entire kit of materials here: Rubber Band Helicopter Kit
Or purchase tools and materials individually:
Plastic propellers Craft sticks
Paperclips
Rubber bands
Card stock
Masking tape
Scissors
(smaller pack)

Step 2: Propeller

The propellers from Kelvin.com should fit snugly onto a craft stick

Step 3: Paperclip

Bending and attaching the paperclip is usually the most challenging step for young kids in grades 1-3. I usually hold the end of the paperclip (on the right side of the photo) between my thumb and forefinger. Then I show how the paperclip bends inside itself. The students need to pull that inside bend apart from the rest of the clip.

Attaching the paperclip can also be tricky. It it's not properly attached, it can be ripped off from too much tension. I try to make it simple for my students: hold the paperclip flat against the craft stick with the tip of the thumb, then tightly wrap a piece of masking tape around it.

It helps if the two ends of the paperclip are separated by the craft stick as shown in the photos, but it's not necessary.

Step 4: Paper Cutout

The paper cutout is crucial; it's what make the copter work. If it's too small, then it won't create enough lateral drag, and too much of the energy in the rubberband will be diverted to the craft stick. If the cutout is huge, it'll simply be too heavy.

I find that cutouts that are about 1.5" by 7" made from cardstock work really well. You can add flavor to this project by create templates for the students to trace, like a helicopter silhouette. For Halloween one year, I made a bat wing template and renamed the project 'Baticopters'

Attach the cutout on the opposite side of the exposed paperclip - this will help ensure that the rubberband won't rub against it.

Step 5: Attach Rubberbands

There are a few ways to attach the rubberbands, but I think the easiest is to put your fingers inside the rubberband and stretch it. The taught rubberband should easily slip into the propeller hook and paperclip.

I find that two rubberbands is the ideal number, but you can experiment.

Step 6: How to Fly

For some students, flying the helicopter is more challenging than building it. First of all, the helicopter must be wound up enough. The number of turns will be different depending upon what brand of rubberband you use. I twist the rubberband until it because completely coiled, and I keep going. You'll notice that the rubberband begins to form a second set of twists that are bulkier - it looks like tight bundles of knotted rubberband. If you fill up the whole length of the rubberband with double-twisted rubberband, then it probably has enough energy.

To fly, hold the top of the propeller and the bottom of the craft stick near the paperclip. For a stable and high-reaching flight, you must let go of the top first and then the bottom within half of a second of each other. This can be difficult for young students to coordinate, so I tell hem to verbally say "tick tock." As they say the words "tick tock," they should respectively let go of the top and bottom of the helicopter.

You can also fly the helicopter sideways following the same procedure.

Step 7: Advanced Ideas

Click on the images for specific design notes.

Step 8: Safety, Tips and Troubleshooting

Students should pay close attention to their helicopter while winding it. If they're winding it absentmindedly, sometimes their hand will slip away from the propeller, allowing it to spin prematurely. They will naturally move their hand closer to the propeller to continue winding, and the spinning propeller may cut their hand.

Spinning propellers can get caught in long hair.

The number one reason helicopters fail to fly is due to simply not winding the rubberband enough.

The second biggest reason is caused by letting go of the whole helicopter at once. Remind them to say "top-bottom" as they let go. It really helps.

Cutouts which span less than 3" typically do not perform well.

With a little practice, students can throw the helicopter as it is being released for additional height

Stay far away from buildings, trees and fences!

I am always trying to improve my projects, so please let me know what you think. Thanks!

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Rubber Band Helicopters - Engineering Project for Kids

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Rubber Band Helicopters - Engineering Project for Kids: The rubber band-powered helicopter is easy to construct, and with a little practice it can be flown 20+ feet into the air!You can find the lesson plan, 1-page project sheet, and more project ideas at STEM-Inventions.com How It Works: 1. Energy is ...

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In this STEM challenge for kids, children will create a paper plate marble maze game inspired by pinball machines using a paper plate and a marble. This engineering activity is great for kids from kindergarten age up through 4th, 5th and 6th grades!

Follow our STEM for Kids Pinterest board!
This post contains affiliate links.
This post was originally published May 24, 2016 and has since been updated.
In our most recent science club, I challenged my students to create a pinball-like marble maze game using a paper plate, some basic craft supplies, and marbles. Kids created all kinds of cool structures on their paper plates for their marbles to go through as they tilted the plate different directions using their hands.

See it in action here:

Materials for Paper Plate Pinball Challenge

Directions for Paper Plate Pinball Challenge
If your students are not familiar with pinball machines (yes, we're that old!), watch some pinball machine YouTube videos together. Notice the different ramps, bumpers, and other pinball machine parts.
1. Provide each child with one paper plate and access to various craft supplies. I demonstrated how to create some simple arches using strips of construction paper. I also provided each student with their own individual pack of Wikki Stix. (You can also buy them in large quantities.) You can do this activity with just construction paper and tape, or try other materials as well, like pipe cleaners or straws.

2. Let the kids get busy creating and testing out their pinball machines with marbles.

The kids loved using Wikki Stix to create paths for their marbles.

Some kids used construction paper to create ramps and pockets in their pinball games and even designated point values for different arches!

The kids had a blast with this science project and even got so excited about the activity, they were trading finished pinball plates for their friends to try!

Be sure to check out STEAM Kids book and ebook for even more creative STEM and STEAM ideas!

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STEM Challenge for Kids: Design a Paper Plate Marble Maze - Buggy and Buddy

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In this STEM challenge for kids, children will create a paper plate marble maze game inspired by pinball machines using a paper plate and a marble. This engineering activity is great for kids from kindergarten age up through 4th, 5th and 6th grades! Follow our STEM for Kids Pinterest board!

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Photographing Fractions in the Environment

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Photographing Fractions in the Environment

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How to Do Glue Batik | CREATIVE BASICS Episode 11

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Knock Off the Clock: a dice game for addition, subtraction, multiplication, and division

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EASY How to make friendship bracelets with a cardboard disk -  DIY Kumihimo Bracelets

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Chrome Music Lab  - Combining Science with Music

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Chrome Music Lab  - Combining Science with Music

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Music is for everyone. Play with simple experiments that let anyone, of any age, explore how music works.

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Classical Music Activities for Kids | San Francisco Symphony

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Music Connects at the San Francisco Symphony. Fun facts, activities, and lessons that support music education at home. Free education resources.

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The Times Tables Songs are best sung or performed in this order!

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A traveling exhibition about the sounds and songs of life

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Butterfly Life Cycle (metamorphosis) Song

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Dublin Zoo and RTÉ Home School Hub have teamed up to bring the Zoo to you so you can visit all of your favourite animals while learning all about them!

Check out the videos and the accompanying activity sheets below.

We hope you will join us to take part in the fun!
Zoorassic World
This visit to Dublin Zoo requires a bit of imagination as the creatures we are talking about are not here anymore. We are talking about Dinosaurs!
Rhinos
Join Kelly in the Discovery and Learning Team as she tells us how to identify different species of rhino, including the Southern white rhino that lives at Dublin Zoo.
Eastern bongo and okapi
Did you know that the bongo is the largest and heaviest forest antelope? Join John in the Discovery and Learning Team as he introduces us to the Eastern bongo and okapi at Dublin Zoo.
Lions
Join Kelly in the Discovery and Learning Team and the pride of Asian lions at Dublin Zoo as they explore some scent enrichment in their habitat.
Tigers
Join Kelly in the Discovery and Learning Team as she introduces us to Niamh the Amur Tiger.

Now that you know more about these hunters why not try to make your own scent trail. Download the worksheet here.
Red Panda
Join Kelly in the Discovery and Learning Team as she tells us all about these animals who are equipped to deal with all kinds of cold weather, with their big coat and a long tail that can be used as a scarf - the red panda.

Click here to download a make your own red panda mask worksheet.
Gorillas
Join Kelly in the Discovery and Learning Team as she shows you how to tell the difference between a monkey and an ape and visits the Western lowland gorillas.

If you want to eat like Bangui the Western lowland gorilla - who has a really healthy diet that includes plenty of colourful vegetables like peppers, tomatoes, broccoli, berries and lettuce - then check out the activity sheet here.
African Savanna
Join Kelly in the Discovery and Learning Team as she visits the animals in the African Savanna!

Would you like to create your own animal habitat? Download the activity sheet here which is full of tips and tricks to help you.
Asian elephants
Join Kelly in the Discovery and Learning Team as she visits the herd of Asian elephants and teaches us how they communicate with eachother.

Download the activity sheet to play an animal communication game here.
California sealions and Humboldt penguins
Join Kelly in the Discovery and Learning Team as she visits the colony of California sealions and Humboldt penguins and teaches us about how these magnificent species have adapted to survive.

Create your own animal superhero adaptation by downloading the activity sheet here.
Bornean orangutans
Join Kelly in the Discovery and Learning Team as she visits the troop of Bornean orangutans and teaches us about the importance of animal enrichment.

Learn to create your very own animal enrichment items for your pets at home by downloading the activity sheet here.

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Home School Hub at Dublin Zoo | Dublin Zoo

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Dublin Zoo and RTÉ Home School Hub have teamed up to bring the Zoo to you so you can visit all of your favourite animals while learning all about them! Check out the videos and the accompanying activity sheets below. We hope you will join us to take part in the fun!

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STEM CHALLENGE
Crazy challenges for designer minds
Your challenge can be as simple or as complicated as you would like to make it. All you need
is some paper, tape and a scissors. Build a tower, as tall as you can but it must also be strong
and sturdy.
Check out this vide for inspiration:

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KS1 Emoji Multiplication Mosaic Differentiated Activity Sheets