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Can a cookie make music with Makey Makey?

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Can a cookie make music with Makey Makey?

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Today we played with the Makey Makey kit. It’s a device that connects to a computer and lets you turn various objects into piano keys or other instruments (like drums or a harp).

We connected fruits, vegetables, processed cheese, almonds, cookies, and candies. The fruits and vegetables worked great, as did the cheese and almonds. But the cookies and candies didn’t play.

Why? Because fruits and vegetables contain a lot of water, and it’s the water that conducts electricity and completes the circuit. Cookies and candies are dry, so Makey Makey couldn’t detect a signal.

Our conclusion: “If it has water – it will play. If it’s dry – it won’t.”

3c /SP-5/ Słupsk/ POLAND (D. Dankowska)

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How does light affect the germination and growth of bean seeds?

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How does light affect the germination and growth of bean seeds?

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In this experiment, we studied how light conditions affect the growth of bean plants. We planted bean seeds in two places: one in a bright location (on a windowsill) and the other in a dark place (in a cupboard). For 10 days, we watered the plants daily and observed their growth.

The results showed that the bean plant in the light grew faster, had green leaves, and looked healthy. The plant kept in the dark was tall, pale, and weaker.

The experiment confirmed our hypothesis that light has a positive effect on plant growth. We learned how important proper conditions are for growing healthy plants.

II e Primary School in Gościcino, Poland/Arleta Formela

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The lava lamp experiment demonstrates important scientific concepts such as density, solubility, and gas reactions. In this experiment, water and oil are combined in a container. Because oil is less dense and does not mix with water, it floats on top. When a fizzy tablet (like Alka-Seltzer) is added, it reacts with the water to produce carbon dioxide gas. The gas forms bubbles that carry colored water droplets through the oil, creating a lava lamp effect. Once the bubbles reach the top and the gas escapes, the water droplets sink back down. This shows how gases can move liquids, and how density differences affect fluid movement. The experiment is a fun and visual way to learn about basic chemistry and physics

II e Primary School in Gościcino, Poland/Arleta Formela

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Inspired by the musical experiments shared by our partners from Koszalin, we took on the challenge and started creating our own music and rhythms using Boomwhackers and virtual Korbo blocks. Thank you, Edyta Jurys!

Class 3 c SP-5 Słupsk, Poland (D. Dankowska, K. Wojcieszek)

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After we laminated the balloon, we cut holes and formed the body of the fish. We added a plastic tube above the eyes. We put lights in its mouth, like those used to decorate a Christmas tree. Our fish started to glow. I have never seen such happiness in my class. :-)

Tatjana <orešković, 2. a, OŠ Frana Galovića, Zagreb

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We also made a glowing fish out of clay. With the help of a student's dad, we connected a lamp and a battery.

We learned that this fish lives in great depths. In the dark, no one can see it. It doesn't need beauty to survive. It uses light to hunt its prey, that's how it feeds.

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Materials needed to create a volcano model:

Prepare:

Baking soda

Vinegar

Water

Food colouring (optional, to colour the lava)

Glass bottle

1. Prepare the base of the volcano:

Use a glass bottle as the core of the volcano. The bottle can be placed in the centre of a large plate or tray to collect the spilled lava.

2. Start the eruption:

Pour warm water coloured with food colouring and vinegar into the bottle. Quickly add the baking soda.

3. Watch the eruption:

The mixture will react, creating foam and “lava” that will begin to flow out of the volcano. The visual effect should be spectacular, especially if you have used food colouring.

Class 3a / SP3 - Piotrków Trybunalski/ Poland - K. Ślęzak

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You will need:

– a glass/bottle or jar

– oil – 3/4 of a glass

– water – 1/4 of a glass

– food colouring + syringe

– effervescent tablet – calcium, magnesium or vitamin C

Instructions:

First, pour water (a small amount) into the glass.

Then add oil so that there is about 2 cm of space at the top of the glass.

Now it's time for the food colouring – about 10 drops will suffice.

Finally, drop in the effervescent tablet. You can break it into several pieces and drop them in gradually, or drop the whole tablet in at once.

Now you can admire the levitating bubbles.

Class 3a SP3 Piotrków Trybunalski POLAND/ Katarzyna Ślęzak

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Experiment with Baking Soda, Vinegar, and a Balloon

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Experiment with Baking Soda, Vinegar, and a Balloon

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Experiment with Baking Soda, Vinegar, and a Balloon

In our class, we conducted a fun experiment with baking soda, vinegar, and a balloon!

First, we put a teaspoon of baking soda into the balloon, and then added vinegar.
Soon, we could see how a chemical reaction produced carbon dioxide (CO₂), which inflated the balloon and made it grow.

The experiment showed us how simple ingredients can create amazing chemical reactions. It was also a great opportunity for learning through play, observing together, and drawing conclusions.

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🌋 Experiment: Geothermal Energy – Heat from Inside the Earth

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🌋 Experiment: Geothermal Energy – Heat from Inside the Earth

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Procedure:

1. Earth Model from Clay:
Make a ball with colored layers:

red core – the hot center of the Earth,

orange mantle – the hot middle layer,

yellow crust – the surface,

green and blue – continents and oceans.
Cut the model in half to show where the heat comes from.

2. Demonstrating Heat Energy:
Place the candle on a base and position the pinwheel about 10–15 cm above it.
Light the candle and observe – warm air rises and makes the pinwheel spin.
This shows how heat can be converted into mechanical energy.

💡 Conclusion:

Heat from inside the Earth (geothermal energy) can be used to power turbines and generate electricity – just like the candle’s heat makes the pinwheel move.

(class II e PS in Gościcino, Poland /Arleta Formela)

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Szkoła podstawowa nr 3 W Piotrkowie Trybunalskim/klasa 2a

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Szkoła podstawowa nr 3 W Piotrkowie Trybunalskim/klasa 2a

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Zainspirowana Kasią i Dorotą! Nam też się udało zagrać na owocach.

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EXPERIMENT “COLORS”
Materials needed: a teaspoon, a small bowl, a transparent resealable plastic bag, hair gel, food coloring or gouache paint.

EXPERIMENT STEPS:

1. Put some hair gel and red coloring into a bowl. Mix well. Transfer the mixture into the plastic bag.

2. Put some hair gel and yellow coloring into a bowl. Mix well. Add this mixture to the same plastic bag.

3. Mix the red and yellow mixtures inside the plastic bag by pressing it with your fingers.

4. Observe how the color changes.

Experiment with other colors, observe what new colors you can create, and enjoy the joy of discovery. Allow children to freely create, try, explore, and notice the color changes themselves – this nurtures their imagination, curiosity, and creativity.

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EXPERIMENT “STATES OF WATER”
Materials needed: water, ice cube trays, a glass, a kettle, a transparent bowl, a small plate.
Before starting the experiment, discuss safety rules.

EXPERIMENT STEPS:

1. Pour water into the ice cube trays and freeze it in the freezer.

2. Take the trays out of the freezer.

3. In the glass, draw what the water turned into in the cold.

4. Boil water in the kettle. Observe what happens to the water above the kettle.

5. In the glass, draw what part of the water turned into in the heat.

6. Pour hot water into the transparent bowl.

7. Place a plate on top of the bowl. Put ice cubes on the plate. What is happening to the ice cubes?

8. In the glass, draw what the ice cubes turned into.

9. Make a conclusion about how water changes when the temperature changes.

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Nasze eksperymenty-tornado w szklance/lampa lawa

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Experiment with Baking Soda, Vinegar and a Balloon.

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Experiment with Baking Soda, Vinegar and a Balloon.

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Inspired by the experiment on blowing up a balloon using baking soda and vinegar shared by our partners from class 2a in Słupsk, we took up the challenge and managed to blow up the balloons. We had a blast.

Class 2b_ SP-5 Słupsk (Joanna Mateńko)

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Lampa lawa. Eksperymenty wykonywane w Dniu Nauki w naszej szkole przez naszych gości.

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Experiment “Clouds and Rain”

Materials needed: water, a glass, a cup, shaving or hair foam, food coloring or gouache, a teaspoon, a pipette.

Procedure:

1. Pour water into the cup, add a few drops of blue dye, and mix.

2. Pour water into the glass. Spray foam onto the surface of the water.

3. Use the pipette to draw up the blue water from the cup and drip it onto the foam in the glass.

4. Observe how the blue water accumulated in the foam begins to drip down—“rain.”

Discuss the children's observations, insights, and questions.

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The Power of Air Journey

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Eksperymentujemy, badamy: wybuch wulkanu, tornado w butelce, zależności ciśnienia od temperatury.

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Szkoła Podstawowa nr 3 w Piotrkowie Trybunalskim

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Szkoła Podstawowa nr 3 w Piotrkowie Trybunalskim

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Jak znika woda? Jak powstaje huragan i jaką ma siłę tego mogliśmy się dowiedzieć podczas pokazów w Dniu Nauki w naszej szkole. 

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Aby odpowiedzieć na pierwsze pytanie potrzebowaliśmy ukryć w kubeczku niewielką ilość superabsorbentu- hydrożelu, który pochłania wodę. Substancja taka wykorzystywana jest np. w pieluszkach dla dzieci czy opatrunkach. Następnie uczeń, który o tym nie wiedział nalewał do kubeczka wody a pozostali w tym czasie wymawiali magiczne zaklęcie. Później nauczyciel udawał, że wylewa wodę nad uczniem schowanym pod parasolem. WODA w magiczny sposób znikała.

Huragan w słoiku powstawał w momencie reakcji spalania tlenu w słoiku- przyspieszaczem był alkohol w perfumach- wówczas świeczka która stała zanurzona w wodzie( udającej ocean), gasła a woda wsysana była do wnętrza słoika, pojawiał się również świst przypominający odgłosy silnego wiatru .

Siłę huraganu mogliśmy zobaczyć, gdy nauczyciel podnosił do góry tacę obciążoną szklankami z wodą.

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We carried out simple experiments with wind and water. We asked questions such as: Why do boats need a sail? How can a boat travel from Shadowland to another island? When do boats sink?… We learned through wonderful hands-on fun.

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Air is invisible, but it has enormous power! Experiments with air and atmospheric pressure are a great way to show children how air pressure affects different objects.

Title of the experiment:

The Self‑Inflating Balloon

Goal:

To teach children about chemical reactions, gases and their properties, as well as how carbon dioxide is created.

For children aged: 5–8
Guiding question: Can a balloon inflate by itself?

Materials needed:

plastic bottle

balloon

baking soda

vinegar

funnel

Procedure:

1. Pour about one‑third of the bottle full of vinegar.

2. Using a funnel, add 1–2 teaspoons of baking soda into the balloon.

3. Carefully stretch the balloon over the neck of the bottle, making sure the baking soda does not fall inside yet.

4. When everything is ready, lift the balloon so the baking soda drops into the bottle with vinegar.

5. Watch as the balloon begins to inflate on its own!

Tip: Try several attempts. Use different amounts of baking soda and vinegar to see how this changes the speed at which the balloon inflates.

Conclusion from the experiment:

The reaction between baking soda and vinegar releases carbon dioxide (CO₂), which fills the balloon and causes it to inflate.

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After learning about the turbine's size and the largest wind farm in Poland, the students decided to measure the blade length and turbine height. To do this, they estimated the length of the school hallway. They then measured the number of times they would need to walk down the hallway to measure the full-length blade of the turbine.

They created wind turbine models, which proved to be a fantastic way to develop students' creativity, design thinking, and collaboration.

In class, they calculated that the turbine blade rotates 120 times in one minute.

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The students learned about the properties of "small moss." To this end, they conducted a comparative experiment: how does a "green roof" protect people?

For the experiment, they prepared models of two houses: they covered the roof of one with green moss. Both houses were heated with "artificial sunlight." At the beginning and end of the experiment, they checked and compared the temperature inside the house. The house with the green roof maintained a constant temperature, while the house without the green roof experienced a rise in temperature. The students learned that this solution benefits people and the environment. The system acts as a natural filter – plants absorb carbon dioxide and particulate matter while simultaneously producing oxygen. In the summer, it reduces indoor heat.

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Students had the opportunity to delve into the fascinating world of electricity. During the workshop, they learned how an electrical circuit works and tested what's needed to actually light up a lamp. During the lesson, they worked with LEDs, small batteries, wires and clips, and handmade paper spruces, which they transformed into creative projects.

The photos show the students connecting components to create a closed circuit—and when everything was connected correctly, the LEDs began to glow with an intense red light. This was the best reward for their careful work and precise assembly!

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During the workshop, the students explored how electrical circuits work and which materials can conduct electricity. They learned that metals, especially copper, and water are the best conductors.

🔍 For the experiment, the students used:

lemons,

copper wires,

metal nails,

LED diodes,

wires.

During classes, students learned about the principle of a closed circuit, checked which elements conduct electricity, learned why different metals can "create" voltage, and tested how the operation of a circuit changes with different connections.

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A plant needs light to live. Our experiment involved planting beans. One bean was planted and placed in a closed box without access to light, while the other bean was placed on a windowsill with access to light.

It turned out that plants need light; otherwise, they lose their green color because they lose chlorophyll. That is why leaves change color in autumn.

In our Animalland, we want there to be as much light as possible.

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Colorful Ice Balls – Learning Through Winter Exploration

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Colorful Ice Balls – Learning Through Winter Exploration

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The winter weather became an inspiration for an engaging experiment in Class 1b. Students took part in the project “Colorful Ice Balls,” which combined learning with creative play and discovery.

The children prepared the experiment on their own – filling balloons with water, adding dyes, and observing how the colors mixed. The balloons were then placed outside in freezing temperatures, which sparked curiosity and excitement as students waited for the results.

This project provided an excellent opportunity to explore changes in the states of matter. Through direct experience, students discovered that water turns into ice when exposed to low temperatures. They observed the properties of ice, including its structure and temperature.

The colorful ice balls also created a great opportunity to talk about colors, light, and changes in nature. Students recorded their observations, made drawings, and compared their predictions with the final results.

The project supported the development of curiosity, observation skills, cause-and-effect thinking, and fine motor skills. It was a valuable learning experience in which education became an exciting adventure.

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We conducted an experiment whose effect strikingly resembles the phenomenon used in lamps.

Ingredients:

a glass/jar/bottle;

oil;

water;

dye;

carbonated tablet.

Procedure:

Fill the glass to ¾ of its volume with oil. In a separate container, mix a small amount of water with dye. Pour the dyed water into the oil, add glitter. Then drop in the carbonated tablet and observe the effect. What will happen in the glass will provide you with unforgettable experiences. The rising drops of dye will start to dance in the container under the influence of the carbonated tablet. We will see real lava.

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We poured water into the bag, sealed it tightly, and stuck crayons into it. And the effect... the effect is that no matter how many crayons we stuck into it, and we didn't skimp on them, the water still didn't leak out.

Explanation:

It's all thanks to the polyethylene from which the bag is made. At the moment when the polyethylene is torn by inserting the crayons, its molecules move closer together and clamp around the crayons.

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The plant needs water and soil to survive. Where will it grow better? In an aquatic environment or in the ground? We decided to test this by sowing radishes. We sowed some seeds in the ground, others in an aquatic environment, on wet cotton wool. It turned out that the plants grow and thrive better in the ground. See our collection.