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Bouncing egg experiment or naked egg science trick | Egg in Vinegar

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Harness the energy of the Sun to make the best snack ever invented, S'mores!

A solar oven is a box that traps some of the Sun's energy to make the air inside the box hotter than the air outside the box. In other words, the solar oven is like a super greenhouse.

You will need:

Cardboard box with attached lid. Lid should have flaps so that the box can be closed tightly. Box should be at least 3 inches deep and big enough to set a pie tin inside.

Aluminum foil

Clear plastic wrap

Glue stick

Tape (transparent tape, duct tape, masking tape, or whatever you have)

Stick (about 1 foot long) to prop open reflector flap. (Use a skewer, knitting needle, ruler, or whatever you have.)

Ruler or straight-edge

Box cutter or Xacto knife (with adult help, please!)

How to make the solar oven:
CAUTION:
Have an adult cut the box with the box cutter or blade.

Using the straight edge as a guide, cut a three-sided flap out of the top of the box, leaving at least a 1-inch border around the three sides.

Cover the bottom (inside) of the flap with aluminum foil, spreading a coat of glue from the glue stick onto the cardboard first and making the foil as smooth as possible.

Line the inside of the box with aluminum foil, again gluing it down and making it as smooth as possible.

Tape two layers of plastic wrap across the opening you cut in the lid-one layer on the top and one layer on the bottom side of the lid.

Test the stick you will use to prop the lid up. You may have to use tape or figure another way to make the stick stay put.

Put the oven to work

Set the oven in the direct Sun on a sunny day when the outdoor temperature is at least 85 degrees Fahrenheit. Prop the flap open to reflect the light into the box. You will probably have to tape the prop in place. Preheat the oven for at least 30 minutes.

To make S'mores, you will need:

Graham crackers

Large marshmallows

Plain chocolate bars (thin)

Aluminum pie pan

Napkins!

Break graham crackers in half to make squares. Place four squares in the pie pan. Place a marshmallow on each.
IMPORTANT! Note that unlike most recipes, our s'mores have the marshmallow UNDER the chocolate. That's because, in the solar oven, it takes the marshmallow longer to melt than the chocolate.
Place the pan in the preheated solar oven.

Close the oven lid (the part with the plastic wrap on it) tightly, and prop up the flap to reflect the sunlight into the box.

Depending on how hot the day is, and how directly the sunlight shines on the oven, the marshmallows will take 30 to 60 minutes to get squishy when you poke them.

Then, open the oven lid and place a piece of chocolate (about half the size of the graham cracker square) on top of each marshmallow. Place another graham cracker square on top of the chocolate and press down gently to squash the marshmallow.

Close the lid of the solar oven and let the Sun heat it up for a few minutes more, just to melt the chocolate a bit.

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Volcano science experiment for Kids to do at home with Vinegar and Baking Soda!!!

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How to make a tornado in a jar science trick

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Did you know that it is easy to turn ordinary milk into a rainbow of crazy colors? With only four common kitchen items, kids are thrilled by the color explosion created by the hydrophilic and hydrophobic molecules in our magic ingredient!

Watch our demonstration video, then print out a materials list and instructions to plan for this simple and fun science experiment. Easy to understand explanation of how it works is included below.

JUMP TO SECTION: Instructions | Video Tutorial | How it Works

Supplies Needed

Milk (Must be either Whole or 2%)

Food Coloring. The more colors the better

Dish Soap

Shallow Dish or Bowl

Magic Milk Experiment Instructions

Step 1 - Pour some milk into a shallow dish or bowl until the milk covers the bottom.

Step 2 - Add some drops of food coloring on the milk. You can use a variety of colors, just be sure to add 3-4 drops of each color.

Step 3 - Add a drop of dish soap into the center of the milk.

Step 4 - Watch in amazement as the colors dances across the surface of the milk. Do you know what caused the colors to move around in the milk? Find out the answer in the how does this experiment work section below.

Video Tutorial
Detailed Magic Rainbow Milk Science Experiment Step by Step Instructions
How Does the Science Experiment Work

The key to the dancing colors in this experiment is soap! Soap molecules consist of a hydrophilic ("water-loving") end and a hydrophobic ("water-fearing") end. Water molecules are polar molecules that can dissolve other polar molecules. Fat (and oil) molecules are nonpolar molecules, so they cannot dissolve in water.

Milk is a mixture of water, fat, vitamins and minerals. When soap is added to the milk, it helps to separate the water and fat in the milk. When soap is mixed in with the fat and water, the hydrophobic end of the soap molecule breaks up the nonpolar fat molecules, and the hydrophilic end of the soap molecule links up with the polar water molecules. Now that the soap is connecting the fat and water, the nonpolar fat molecules can be carried by the polar water molecules.

As the soap molecules connect to the fat molecules, the molecules of the food coloring get pushed around everywhere resulting in an explosion of color! As the majority of soap molecules attach to the fat molecules and the soap spreads throughout the milk, the color explosion will slow and eventually stop. Add more soap and see if there are more fat molecules that haven't attached to soap - if there are unattached fat molecules still, the color explosion will begin again.

This experiment works best with 2% and whole milk because they contain more fat.

Other Ideas to Try

Try this experiment again using milk with different fat percentages. Try it with skim milk, 1% milk, 2% milk, whole milk, half and half, and cream. Consider even trying evaporated milk and sweetened condensed milk. See how the amount of fat affects the explosion of color!

I hope you enjoyed the experiment as much as we did. Here are some printable instructions:

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Magic Milk Science Experiment - Amazing Explosion of Color!

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Did you know that it is easy to turn ordinary milk into a rainbow of crazy colors? With only four common kitchen items, kids are thrilled by the color explosion created by the hydrophilic and hydrophobic molecules in our magic ingredient! Watch our demonstration video, then print out a materials list and instructions to plan [...]

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Blippi’s Sink or Float Game! 💦 Science for Kids at the Playground

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pepper and science experiment - Google Search

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Start by taking a plate I like to use a white one like this and pour on some. Water. Then take yourMoreStart by taking a plate I like to use a white one like this and pour on some. Water. Then take your pepper.