November 9, 2022 //  by Keren Dinkin

Science is an interesting discipline, to say the least. Exploring it the right way can help youngsters learn valuable lessons from it. However, the process does not have to be difficult or boring. Experiments can make learning science a fun experience. Simple but amazing experiments can spark curiosity and help kids understand difficult concepts better. If you are raising a future scientist, here are 25 cool and fun science activities that you can try with them.

This is a very simple experiment that only requires one disposable plastic water bottle. Make sure it’s clean, empty, and dry. Close the cap and twist the bottle very tightly- forcing the air molecules together. As the cap is opened there will be a pressure release. The expansion of the compressed molecules will create a cloud. 

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Take a clean and dry bottle. Add some baking soda and vinegar to it. Immediately cover the mouth with a balloon. When the two liquids react, a harmless gas will be formed. This gas will not be able to escape the bottle because of the balloon and will inflate it instead.

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Blow a balloon. Now add some static charge to it by rubbing it over your hair or your shirt. Place the charged balloon close to the running water. The stream of water will bend because of the electric charge, leading to a fun activity.

Take equal parts of warm water and borax and mix well. In another cup, take equal parts of glue and cornstarch and add a little food color to it. Combine both mixtures and knead them into a ball. Now watch the mixture bounce before your eyes! 

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Take an egg and cover it in vinegar. Let it sit for 24 hours. After 24 hours have passed, remove the egg and rub off the shell. That’s it! Now you have a bouncy egg. You can add cool effects by shining a light under it to make it appear even more mesmerizing.

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Take 2-3 cups of water and add a different color dye into each. Place one white carnation flower with the stem in each cup. Observe the change in color as the plants “drink” the water. Explain that this is how they absorb vital nutrients and food from the soil.

Pour any clear carbonated beverage into a glass and add raisins to it. The escaping gas will make the raisins move up and down in the liquid, making them “dance.” Kids will learn about gas evaporation in this fun science activity.

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Take ½ cup of hydrogen peroxide in a bottle and add 10 drops of food color to it. Now add 1 tablespoon of dish soap and mix the solution thoroughly. Set aside. Combine water and yeast in another glass and let it sit for 30 seconds. Now transfer the solution from the glass into the bottle and watch it explode.

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This is one of the easiest STEM activities you can do with your kids. Carve the inside of a small pumpkin and draw a horror face on the outside with a permanent marker. Take ¼ cup vinegar and add two drops of coloring agent to it. Mix and pour the liquid inside the pumpkin. Add 1 tablespoon of baking soda, stand back, and watch colored foam spray out of the pumpkin head.

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Looking for a STEM activity that your kids will remember for a long time? Try the fire snake! Mix baking soda and sugar in 1:4 proportion. In another container, take some sand and add some type of fuel to it. Place the baking soda and sugar mixture on it and light the fuel. Now have fun observing the black snake this concoction makes.

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Place a kitchen towel on a plate and place pennies on top of it. Pour vinegar over the coins and observe the color change for the next few hours and days. The coins will turn green as they are made of copper. On exposure to oxygen, this copper will turn into copper oxide.

Mix equal parts of baking soda and water. Use this solution as ink and write on paper. Paint the paper with grape juice to reveal the message. It is one of the more fun activities for kids where they learn and play at the same time. Leave them a secret message using this technique.

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Take a coin and place it on any flat surface, like a table. Now gradually add drops of water to it using a syringe or dropper. You will soon notice a dome of water forming on top of the coin. This happens because of the surface tension of the water molecules.

This Jelly Bean science experiment is one of those STEM activities that most kids love. Just arrange the jelly beans in a circle on a plate. Now add warm water slowly so that you do not disturb the arrangement of the beans. As the water comes into contact with the beans it will dissolve the dyed sugar coat on the jelly beans- forming a beautiful rainbow.

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Take a glass of water and add any dye to it. Now take a jar and add a cup of oil to it. Pour the colored water into the jar and add a fizzing tablet. The tablet will create carbon dioxide and form supercool bubbles which will move up and down in the jar.

Take a glass of water and add ice cubes to it. Sprinkle in ½ teaspoon of salt and lay a string over the ice cubes. The salt will melt the water on the ice and as the water refreezes, the string will get trapped in the ice. So, when you pull out the string, the ice cubes will appear like a necklace on it.

Pour some milk into a flat dish. Add a few drops of different dyes or colors to it. Now take a cotton swab covered in soap and dip it in the middle of the colors. The reaction between the fat and protein in the mixture will make the colors “dance”.

Add a drop of clear nail polish to a bowl of water and dip black construction paper into it. Let it dry. Now take it out and tilt it at an angle under light to observe the rainbow patterns.

Take a sheet of paper and cut it into a spiral. Attach the paper to a string and hang it. Place a lamp below the spiral and watch the spiral go round and round. This happens because the air around the lamp gets heated. As hot air is less dense than cold air, it moves upwards, pushing the spiral and making it dance.

You can make ghosts out of a tea bag. This cool experiment involves drawing a cute ghost on your tea bag, balancing it upright, and lighting the top; that’s it. Now watch the “ghost” fly away!

Lower the temperature of a coin and glass bottle by placing them in cold water. Place the coin on top of the bottle and wrap your hands around it. The heat in your hand will warm up the glass bottle. It will then warm up the air molecules inside the bottle. This will cause the coin to jump up.

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One of the most fascinating and simple science activities is the unpoppable balloon experiment. All you need is an inflated balloon, a skewer, and dish soap. Dip the skewer into the dish soap and pierce the balloon carefully with it. The skewer will not pop the balloon.

Take 7 empty jars and add different colored water in all the odd-numbered ones. Keep the even-numbered jars empty. Roll a sheet of paper towel and bend it in the middle. Place one end in a water-filled glass and another in an empty one. Stare at the experimental setup and observe water “walking” from the water-filled cups to the empty ones. The mixing of the colors will also develop new hues in the even glasses.

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Fix a lit candle on a plate. Pour water onto the plate. Add color to the water with a dye to improve visibility. Lower an upside-down glass over the candle to completely cover it. As the flame burns out, the water will rise in the glass.

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In this simple experiment, kids will learn that there are many pigments present in leaves, but since chlorophyll is the most dominant, it imparts a green color. Take a leaf and break it into pieces. Place it in a jar containing alcohol. This will transfer all the pigments to the solution. Dip one edge of a coffee filter into the solution and observe the separation of colors as the liquid rises on the strip.

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