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Seventh Grade STEM Activities for Kids (188 results)

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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 Homemade Fly Trap
STEM Activity
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59 reviews
Have some pesky flies in your kitchen that you cannot seem to get rid of? In this project you will build your own simple fly trap from a plastic bottle. Get ready to get rid of those flies! 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
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Make String from Algae
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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
Seeing in the Dark
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8 reviews
Have you ever considered taking a nighttime nature walk? Would you wait until there is a full moon, so you could profit from sunlight reflected on the moon, or would you rather take a flashlight? Do you think trees would look black, green, or grey in the dark? Do this activity to examine your night vision and prepare for your next nighttime adventure! Read more
Teach a Computer to Recognize Road Signs
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25 reviews
How do driverless cars know how to recognize different road signs? They use something called machine learning. In this activity you will teach a computer to recognize different road signs using photos that you take yourself and a tool called Teachable Machine by Google®. The better the training data, the more accurately the program will be able to recognize different types of signs. Read more
The Aerodynamics of Flying a Frisbee
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16 reviews
Are you good at tossing a Frisbee? Have you ever wondered how a Frisbee is able to fly through the air so well? If you can throw a perfect, arcing curve, right on target, you have already trained your arm on the aerodynamics of Frisbee flight! In this science activity, you will investigate how the angle at which you throw the Frisbee affects its flight's direction and distance. Next time you are out tossing a Frisbee, this little lesson in aerodynamics may help make your throws be even… Read more
The Ambiguous Cylinder Illusion
STEM Activity
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21 reviews
Is it a circle? Is it a square? Or is it both? Make your own 3D printed "ambiguous cylinder" illusion in this fun activity. Read more
The Trick to Beating a Carnival Game
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15 reviews
Have you ever played a game at a carnival, trying to win a stuffed animal or other prize? It might look easy, until you try it. Why are those "simple" games at the fairs and carnivals so hard? Is it really lack of skill or coordination or do those concessionaires use some basic laws of science to help them set up the games in their favor? In this science activity, you will investigate how physics can help you win — or lose — at the classic game of trying to knock over a pyramid of… Read more
Use a Drop of Water as Magnifying Glass
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12 reviews
Are you ready to bend light, magnify letters, and have fun with drops of water—all while getting a glimpse into how lenses work? Lenses are the key components in eyeglasses, contact lenses, binoculars, telescopes, and magnifying glasses, just to name a few devices. With this activity, a homemade magnifying glass is only a drop away! Read more
What Are the Chances?
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43 reviews
Have you ever heard anyone say the chance of something happening is "50-50"? What does that actually mean? This phrase has something to do with probability. Probability tells you how likely it is that an event will occur. This means that for certain events you can actually calculate how likely it is that they will happen. In this activity, you will do these calculations and then test if your calculations hold true for reality! Read more
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