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Hungry for fresh, exciting science activities based in amazing phenomena? Science Snacks are hands-on, teacher-tested, and use cheap, available materials.
Why is the bicycle the most efficient way to travel? Explore bicycle science and culture.
A carbon dioxide–rich atmosphere changes the water beneath it.
Listen to the rhythm of falling weights.
Not all shadows are black.
Make a jumpy mechanical pet that takes itself for a walk.
Discover how antibodies launch attacks on invaders.
Take a (super) close look at your smartphone. You may be surprised by what you see.
Components of force make a toy walk and stop at just the right time.
What's really going on when you bake? Find out.
Suspend a ball in a stream of air.
Demonstrate resonance by shaking dried spaghetti.
Two cylinders that look the same may roll downhill at different rates.
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