Many things happen when an airplane flies through the air The air must move. Sometimes the air gets hot. Air can push up or down.

Airplanes and rockets fly high and fast. We must understand what air does so they can fly better. Most parts of this chapter tell about air and what it does.

Explore Space ... Not Drugs!
Hear what astronauts have to say about staying drug-free.
Last modified: Sat Jun 20 21:18:09 PDT 1998