The science sound that’s sure to drive parents wild!
The downward force of gravity is (temporarily) put on hold for a spinning marble.
What color is black?
This activity is an amazingly simple display of centripetal force (and annoying sounds) right at your fingertips.
Swinging an open glass of water sounds like a recipe for a mess, but not when you understand the physics behind the trick!
Love World Cup Soccer? Make your own stadium horn.