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In this post I’m sharing one simple and fun air pressure activities for kids. If your kids are young, you can simply do the activity and let them marvel at the outcome. If your kids are older, I’ve included some of the science behind each activity to help them learn more about air pressure. I hope you enjoy!
How does the paper towel stay dry?
This first demonstration is extremely easy to prepare. Take a paper towel and shove it into the bottom of a glass.
Air pressure activities for kids: How does the paper towel stay dry? || GIft of Curiosity
It should be packed in tight enough that it will remain in the bottom of the glass even when the glass is turned upside down.
Air pressure activities for kids: How does the paper towel stay dry? || GIft of Curiosity
Next, fill a sink or container of water. The depth of the water should be equal to or greater than the height of your glass.
Air pressure activities for kids: How does the paper towel stay dry? || GIft of Curiosity
Place the glass, upside down, into the water. It is important to place the glass straight down into the water without tilting it to the side.
Air pressure activities for kids: How does the paper towel stay dry? || GIft of Curiosity
Then lift the glass from the water. Remove the paper towel. Your kids will notice that the paper towel is still dry.
Air pressure activities for kids: How does the paper towel stay dry? || GIft of Curiosity
So how does the paper towel stay dry?
The air pressure in the glass pushes the water away, so that the water cannot go into the glass to get the paper towel wet. Even if the water on the outside of the glass completely submerges the glass, the air pressure in the glass prevents the water from entering.