First, fill up a large cup with water.
Wad up a paper towel.
Stuff it into a smaller cup.
Then, invert the small cup and push it down into the water.
Push it all the way in, all the way under!!!
You can even let the cup float around a bit.
Then, gently lift the small cup back out.
Check out that paper towel - even though that cup was completely submerged in water, the paper towel is completely DRY!!!
Keeley wanted a turn.
Then she wanted more than one turn, so I set her up with her own!
See?? All dry!
Luken correctly told us that the air pressure inside the small cup keeps the water from entering the cup and getting the towel wet.
Very cool!
1 comment:
What a smart boy to remember that! And a cool experiment to boot!
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