Defy gravity in this simple trick! All you need is a glass full of water and some cardboard and you will be able to show off a cool use of air pressure that makes this activity seem like a magic trick.
Hands-On Wednesday: Defying Gravity
Item
Defy gravity in this simple trick! All you need is a glass full of water and some cardboard and you will be able to show off a cool use of air pressure that makes this activity seem like a magic trick.
