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STEM Activities for Kids (482 results)

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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
Gear Up Your Candy
STEM Activity
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6 reviews
Did you know that gears are all around you? You can find them in wind-up toys, bicycles, carousels, cars and trucks, cranes, drills, wind turbines, analog watches, and so forth! If you've looked closely at a moving bicycle, you have seen gears at work. Are you curious about their purpose? In this activity you will use candy to make gears and explore why they are so versatile. Read more
Give It a Lift with a Lever
STEM Activity
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8 reviews
Have you ever wondered how ancient people could lift very heavy objects, such as large stones, to build pyramids? A lever is a simple machine that can help people do just this. It can also help make other kinds of physical work easier by giving the user a mechanical advantage. Common examples of levers you might see around you are seesaws, scissors, wheelbarrows and even the your own jaw. Although all of these levers have the same functional parts, they vary in where the different components… Read more
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Make String from Algae
STEM Activity
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210 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
Gravity-Powered Sorting Machine
STEM Activity
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23 reviews
Have you ever used a coin-sorting machine to separate pennies, nickels, dimes, and quarters? When you need to separate things that are all mixed together, using a machine can be much faster than picking them apart by hand. In this project you will build a machine that can automatically separate two different size marbles, powered by nothing but gravity. Read more
Have a Cricket Tell You the Temperature!
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16 reviews
Do you love to hear the pulsing chirp of crickets as you fall asleep? It is an unmistakable sound. Some people find the sound pleasing and peaceful, but other people find the sound loud and annoying, especially if a cricket happens to get inside a home to escape the cold. However you feel about crickets, their chirps hold a surprising message — they can be used to predict the temperature! In this science activity, you will investigate how the chirps of these tiny creatures can be used… Read more
Holes That Do Not Leak!
STEM Activity
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42 reviews
Did you know that at sea level there are about 15 pounds of air pressing on each square inch of your body? This air is very helpful in our daily lives. For example, this layer of air helps to keep the Earth from getting inhospitably cold or hot. It can even help keep a bottle with holes in it leak-free! Try the activity to find out how. 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
How Particle Size Determines Chemical Reaction Rate
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25 reviews
Did you know that flour can explode? Luckily, this does not happen spontaneously on your kitchen counter, but only if the conditions are right. The trick is that you need a very fine powder of flour to make an explosion happen. In fact, any solid flammable material that is dispersed in the air as a dust cloud will explode once it is ignited. Why is that? It has to do with the particle size of the solid material, which determines how rapidly a chemical reaction takes place. In this activity, you… Read more
How Strong are Eggshells?
STEM Activity
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87 reviews
Have you ever seen an arch structure in a building, such as over a doorway or surrounding large windows? Arches have been used in structural engineering since ancient times. In this activity you will test the strength of a naturally occurring arch shape: the shell of an egg. So grab some eggs and put them to good engineering use in trying to answer the following question: Just how much mass can an eggshell can support? Read more
Imagine Ways that Artificial Intelligence Could Change the World
STEM Activity
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99 reviews
AI is all around us and changing our world—often for the better, but sometimes with unintended consequences. In this activity, you will imagine and explore the potential benefits and dangers of an artificial intelligence solution you imagine. Let your imagination flow and see where it takes you. Read more
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