Across
- 1. prize
- 3. spaceship
- 7. everywhere
- 12. astronaut
- 14. clean
- 15. first
- 16. another
- 18. suddenly
- 20. helpful
- 22. third
- 23. moon
Down
- 2. excited
- 4. yesterday
- 5. second
- 6. swimming
- 8. earth
- 9. careful
- 10. quickly
- 11. friendly
- 13. slowly
- 17. decide
- 18. sick
- 19. cough
- 21. dream