Across
- 1. Operated by water under pressure
- 3. Fire ________
- 4. not from this world
- 7. Lifting surface
- 8. One’s land
- 11. Big rock in space
- 13. ‘
- 15. Opposite of hydrated
- 19. Underground
- 21. Air in a can
Down
- 2. The atmosphere
- 5. A branch of science studying space
- 6. Traveler in a hot air balloon
- 9. A place for small animals
- 10. Person who goes to space
- 12. “H” of the periodic table
- 14. Small dog Bred to hunt rodents
- 15. Something really bad
- 16. What to do if exhausted
- 17. Study’s of movements in space
- 18. Different exercises
- 20. Practice of flying minuvers