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Chemistry STEM Activities for Kids (84 results)

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Splitting Water
STEM Activity
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12 reviews
You use it basically every day and cannot survive without it—no it is not your cell phone, but water! It is one of the most essential compounds of the world and has become an increasingly important issue everywhere. You probably have heard that in many places droughts or water pollution limits clean drinking water supplies, and those supplies keep shrinking. When considering this, have you ever wondered why we do not just make our own water, and what water is actually made of? In this… Read more
Best Wand for Big Bubbles
STEM Activity
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5 reviews
Have you ever tried to blow a bubble, and no matter how hard you try, the bubble just will not form? Why does this happen? Why do bubbles form at all, and why is it harder to blow bubbles sometimes? In this activity, we will explore the limits of how big our bubbles can get! Read more
Dancing Candy Hearts
STEM Activity
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47 reviews
Have you ever opened a fresh bottle of carbonated water or soda, poured a glass of it, and just watched as the bubbles fizzed upward in the glass? Have you ever wondered what those bubbles are? They're made of carbon dioxide gas, which was packed tight in the soda before you opened the bottle. Not only can that carbon dioxide gas give you a fizzy drink to enjoy, but it can also give you a show. How? By making candy conversation hearts "dance!" Along the way you will discover some of the fun… Read more
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Make String from Algae
STEM Activity
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212 reviews
Did you know that the seaweed you've seen in the ocean or even eaten as a snack is inspiring innovators to imagine new materials? Large brown algae, like kelp, contains polymers—long chains of molecules—that are more environmentally friendly than the ones in most plastics. These natural polymers (alginates) could eventually be used to create sustainable everyday objects. Try your hand at using a bit of chemistry to turn biodegradable polymers from algae into your own custom… Read more
Fire-Fighting Foam
STEM Activity
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26 reviews
Do you have a fire extinguisher at home? Hopefully, yes! It can save your life in case there is a fire. But have you ever wondered how these extinguishers work? Some of them don't even contain water, which is what you probably think of first when it comes to stopping a fire from spreading! What else other than water can extinguish a flame? Do this activity to find out—and put a candle out as if by magic! Read more
Homemade Rice Paper
STEM Activity
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6 reviews
Have you ever encountered "paper" on your plate—perhaps in the form of thin paper for spring rolls, or cake decorating? Did it make you wonder how this paper relates to the paper you write on? You will find out in this activity! In addition, you can discover the recipe to make the edible paper you like best. Read more
Make a Candle Flame Jump
STEM Activity
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30 reviews
There are many occasions to light candles. When you did, have you ever looked closely at the flame? Which part of the candle is actually burning? Can you tell? Is it the wick, the solid wax, the liquid wax or something else? In this activity you will light some candles to find out—no special occasion required! Read more
Make a Sunprint Using Objects from Nature!
STEM Activity
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10 reviews
Have you ever wondered how artists are able to replicate intricate details in nature on paper or canvas? In this activity, you will depict these details in a different way! Using Sunprint® paper and sunlight, you too can make breathtaking representations of objects found in nature. Read more
Make Boba for Bubble Tea
STEM Activity
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24 reviews
Ever wondered how the boba in bubble tea are made? Bubble tea or boba tea is a sweetened drink made of flavored tea, milk and bubbles. The translucent, squishy bubbles called boba are remarkably easy to make. You only need three ingredients: tapioca flour, water, and brown sugar. The skill lays in one little detail: the temperature of the water used. Curious? Try it out and make bubble tea from scratch! Read more
Milk Curdling with Enzymes!
STEM Activity
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43 reviews
Have you ever gone to pour yourself a cup of milk, and all you get is clumps? What happened to the milk is called coagulation, which is the mechanism that occurs when proteins in the milk clump together. While you do not necessarily want this in your milk, without coagulation (or curdling), there would be no cheese or yogurt, which is why it is a very important process in the food industry. Wonder how you can make milk curdle? Do this activity to find out! Read more
Separation By Distillation
STEM Activity
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9 reviews
Do you like cooking? If you have helped in the kitchen at home, you have probably heated up lots of liquids, like water, milk, and soup. Did you notice that once the solution boils, a lot of steam develops; and have you ever wondered what the steam is made of? What happens to all the substances, such as sugar or salt, that are dissolved in the solution you are boiling? Do they boil off, too, or do they stay behind in the solution? In this activity, you will build a distillation device that… Read more
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