STEM Activities for Kids (482 results)

Slinking Slinkies

STEM Activity

2 reviews

Have you ever watched a Slinky "walk" down a flight of stairs and wondered how it works? It's a fascinating thing to see and a big part of the Slinky's appeal. These spring toys have been popular for well over half a century; your parents, or even grandparents, may have played with them. Slinkies not only make fun toys, they are also great for doing physics and engineering activities. In this activity you will investigate how the angle of an inclined plane affects how well a… Read more

Slip Sliding Away: Experimenting with Friction

STEM Activity

Have you ever driven up a mountain, seen a sign reading "Hazard! Icy Roads Ahead," and wondered why ice makes roads dangerous to drive on? The answer has to do with friction—specifically, the lack of it. Specifically, in the case of driving a car down the road, the friction that allows the car to move occurs between the tires and the road. This friction normally allows the car to "grip" the road—keeping the tires in contact with the relatively rough road… Read more

Slippery Science: Explore Friction by Launching Stuff

STEM Activity

4 reviews

Have you ever tried to get a running start and slide across a smooth, wooden floor while wearing socks? What happens if you try the same thing on a carpeted floor, or while wearing shoes? The amount of friction between your feet and the floor surface determines how well you can slide. Some combinations of surfaces, like socks on a wooden floor, produce very little friction. Other combinations, like rubber soles on a wooden floor, produce much more friction. In this project you'll do a much… Read more

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Make String from Algae

STEM Activity

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

Slippery Slopes and the Angle of Repose

STEM Activity

5 reviews

Have you ever seen an avalanche or landslide roll down a hill? Why is it that at one moment, everything seems fine, then suddenly the mountain begins to slump? It has something to do with how the earth or snow is piled up on the mountain. Generally, granular materials such as snow or earth pile up relatively well. However, if the slope angle gets too steep, the materials will start to slide down the slope. This critical slope angle, also called the angle of repose, is different for different… Read more

Snuggly Science: How Puppies Keep Warm

STEM Activity

4 reviews

Have you ever woken up on a cold, frosty morning and just wanted to snuggle down deeper under the covers? Animals, like puppies and piglets, do not like being cold either, but they do not have hands or blankets to wrap themselves up. So when animals get chilled, they change their behavior and do things like huddle – they curl up close to other animals. In this science activity, you’ll see just how much huddling can help reduce heat loss. Read more

Soft-Boiled Science: Egg-cellently Cooked Eggs

STEM Activity

3 reviews

Have you ever been in such a rush in the morning that you barely had time for breakfast? Eggs can be a perfect breakfast choice because they can be cooked quickly and in many different ways. Not only do eggs have a spotlight right now because of Easter approaching, but eggs have been commonly eaten for thousands of years, all year round and all over the world. A soft-boiled egg is a choice that many people make. They like the way the thickened tasty yolk coats their hash… Read more

Soil Color and Moisture

STEM Activity

4 reviews

Have you ever taken a step onto what appeared to be dry ground, only to find yourself ankle deep in mud? Yikes! When you walk through damp soil, it can be a very messy experience. How can you tell if soil is wet or dry before you step on it? In this science activity you will investigate whether the color of soil can help you determine how dry or wet it is. Read more

Soil Compaction

STEM Activity

2 reviews

Have you ever noticed how much work it is to dig a hole in really hard soil? It's much easier to dig a hole in soft, loose soil. But why is that? Soil that is hard and dry is often compacted, which means that it has been packed down, making it denser and thereby difficult to penetrate. Soil that has become compacted is not only harder for you to dig a hole in, but it can also be much harder for a lot of other organisms, such as helpful earthworms, to survive in. Read more

Soil Science: How Moist is that Mud?

STEM Activity

Have you ever taken a step onto what appeared to be dry ground, only to find yourself ankle-deep in mud? Yuck! When you walk through damp soil, it can be a very messy experience. How can you tell if soil is wet or dry before you step on it? In this science activity, you will investigate whether the color of the soil can help you determine how dry or wet it is. Read more

Solidifying Science: Which Fruits Can Ruin Your Gelatin Dessert?

STEM Activity

Have you ever noticed that if you’re making a gelatin dessert, like JELL-O, it’s not recommended to use certain fruits, like pineapple? Why is this? It’s because these fruits may prevent the gelatin from solidifying. In this activity you’ll get to determine if certain enzymes in some fruits are preventing the gelatin from solidifying, and whether there’s a way to still include these fruits without ruining your gelatin dessert! Read more

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