Hot Air Balloon
Across
- 4. going up
- 6. carry up
- 8. to float
- 9. pushing up or down
- 10. letting air/gas out
- 12. slows object down
- 13. the balloon
- 14. allows fire to go
Down
- 1. carries people or things
- 2. the base of the envelope
- 3. pushing down
- 5. opens to make it descend
- 7. light materials
- 8. makes fire for balloon
- 11. fill in
- 12. per unit of volume