Across
- 3. a hard heat resistant type of glass
- 4. branch of mathematics that deals w/ pts etc..
- 6. study of physical features of the earth.
- 8. existing, happening or operating in the air.
- 9. relating to exercise that improves the body.
Down
- 1. to introduce air into.
- 2. a fireworks display.
- 3. the obsessive desire to set fire to things.
- 5. study of the motion of air.
- 7. relating to the internal heat of the earth.