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Contributor: Kaitlyn Zimmerman. Lesson ID: 12813
Did you know that hot and cold air are always in a constant battle? No matter what, they are always bumping into each other. Did you know that you could use air to shrink objects? Try it out yourself!
Chloe LOVES ballet. She plans to spend all day practicing for her upcoming performance.
When Chloe gets to the studio, she is hit by a wall of cold air as she walks in the door. After an hour of practicing, Chloe is so cold that she wants to go home. She feels too cold to move!
If so, then you and molecules have a lot in common!
Just like Chloe, air molecules can become cold too!
They may not shiver or say they are cold, but you can see how they react when they are cooled.
You know warm air can take a dent right out of a ping-pong ball.
Tune in to Flo to see just how it works!
This happened because the air molecules, when cooled, pulled in closer together, taking up less space inside the bottle.
As this happened, the bottle also pulled in because the air pressure of the warmer air on the outside was greater than that of the cold air inside the bottle.
Once that all makes sense, move to the Got It? section for a quick quiz!
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