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STEM Activities for Kids (482 results)

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How Many Colors in a Rainbow?
STEM Activity
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48 reviews
Have you seen a rainbow in the sky after a rain shower? How many colors were there? A rainbow is often described as having seven colors: red, orange, yellow, green, blue, indigo and violet, but you might spot a rainbow and see fewer colors. Or you might see more than seven! It can be tricky to count the colors in a rainbow, because they all blend together so seamlessly. Want to see for yourself? In this activity you will explore the physics of light and create your own mini-rainbows. How many… Read more
How Well Do You Wash Your Hands?
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43 reviews
How well do you wash your hands? Do you just give them a quick rinse with water, or do you use soap? Do you wash the backs of your hands and in between your fingers? Good hand washing is one of the best ways to prevent the spread of germs and diseases like the flu and common cold. Try this activity to find out if there are hard-to-wash parts of your hands where germs might be hiding! Read more
LED Stickies
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25 reviews
Add some light to your refrigerator magnets and learn about circuits in this fun craft project! Read more
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Make String from Algae
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215 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
Lighten the Load with a Pulley
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56 reviews
Before the Industrial Age, people had to rely on muscle power to move and lift heavy objects. Simple machines like pulleys, levers, and ramps made it easier for humans to lift heavy objects like rocks and logs. In this project you will use simple household materials to explore one of these classic machines – the pulley. Read more
Make a Night-Light
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26 reviews
Are you ready to move beyond paper circuits and squishy circuits? This is a great intermediate circuit project where you will build your own working night-light. And of course, you will have some fun decorating it! Read more
Make Sprinkles Vibrate with Sound
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48 reviews
You might know that sound is caused by vibrations, but did you know that sound can also make things vibrate? You might have noticed this if you have ever been at a concert or in a car with the stereo booming. Sometimes the sounds are so loud that you can feel the vibrations! However, sounds that loud can damage your hearing, so in this project you will investigate them using something safer. Read more
Make Your Own Fizzy Lemonade
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17 reviews
Did you know that the soda company Coca-Cola makes over 3,500 different types of soda to distribute around the world? If you tried a different one every day, it would take you over 9 years to try them all! Do you think you would like octopus-flavored soda? What about cheese-flavored soda? If you travel far enough around the world, you’ll find those and many other flavors that may seem exotic in the U.S. Although the flavors might differ, one thing that all sodas have in common is the… Read more
Measure Static Electricity With An Electroscope!
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69 reviews
Have you ever been zapped by a door knob or another person? It feels like a little electric shock and usually happens on cold and dry winter days. Where is this shock coming from? Why is it that sometimes you get zapped and sometimes you don't? It all has to do with static electricity, which can build up in some materials and then be transferred from one object to another. Sometimes you can even see a spark fly between them! In this science activity you will explore how well materials around… Read more
The Scientific Secret of Stretchy Dough
STEM Activity
Do you remember the last time you baked cookies, bread or cake?  Did your baked good turn out perfectly? Or was it a bit too flat, or perhaps rubbery and tough, or maybe with clumps of dry ingredients? The problem might have been in how you mixed the dough, or with the type of flour you used.  In this science activity, you will knead, stretch and punch some pretty remarkable doughs and discover what provides structure and elasticity to your baked goods. Next time you prepare dough for… Read more
The Wagon Wheel Effect Optical Illusion
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12 reviews
Have you ever seen a video where it looked like a car's wheels were spinning backwards even though the car was driving forward? This is called the wagon wheel effect, named after old movies where it looked like wagon wheels were spinning backwards. Even though you cannot see the effect in person, it can show up in videos of spinning objects. Find out why in this project and make your own videos of the wagon wheel effect! Read more
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