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It's invisible, but it's everywhere. It's air, and you can make it do some amazing things! Try these experiments and find out more.
YOU WILL NEED
- Glass
- Piece of cardboard
- Water
- Sink or tub
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HERE'S HOW
Completely fill a glass with water. Place a piece of cardboard over the top of the glass. Then turn the glass upside down over a sink or tub, holding the cardboard tight against the rim of the glass. Now remove your hand. Ta-daaaa! The water should not spill out! (If it does, practice a few more times over a sink. Make sure there are no air bubbles inside the water glass.
WHY?
The water stays in the glass because the pressure of the water inside the glass is less than the pressure of the air that pushes from the outside against the cardboard.
PAPER RACERS »
Illustration by David Bamundo
Text by Julie Vosburgh Agnone
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