Across
- 2. thing that burns
- 3. a covering or layer
- 4. let out air
- 5. the degree of the compactness of a substance
- 9. a tapering piece of material
- 10. a container that holds/carries things
- 11. rising through the air
- 13. raise something to a higher position
- 14. force that attracts something towards the center of the earth
Down
- 1. energy in addition to physical movement
- 2. the ability to float in the air
- 5. pulling something with force or difficulty
- 6. fill something with air or gas
- 7. an opening to a structure that is hollow
- 8. opening in the top of a parachute to ensure stability
- 12. base of envelope; fire resistent