The Magic School Bus Goes on Air
Field Trip Notes
We got assigned air, and it’s not fair! The only contribution the kids in Ms. Frizzle’s class have to give the Walkerville Space Capsule is an empty jar. "It’s not empty," argues Keesha. "It’s filled with...air!" "But air doesn’t do anything!" wails Ralphie. They discover the "air-ror" of their ways when they shrink and get stuck inside the jar - and all they find inside the "How-to-Get-Out-of-a-Pickle-Jar-When-You’re-the-Size-of-a-Snail Escape Kit" is...air!
Time: 30 minutes
Group Size: 2-4
Ms. Frizzle’s kids trap air in containers and discover that air is pushy stuff. Your kids explore how air pressure can hold up heavy objects.
What You Need
Talk About It
Ask: Is air real stuff? How do you know that air is real? (One way: Feel wind, breath.) What can air do?
What To Do
Have kids ride bikes first with underinflated tires, then fully inflated. Ask: Which required more effort to ride? Why? (Fully inflated tires have more air squeezed inside the tires. The pressure makes them stiff. Soft tires flex and bend - using up energy.)