Across
- 3. A valuable collection often hidden (8 letters)
- 4. To cover something with color (5 letters)
- 6. A person who travels in space (9 letters)
- 9. A place where you can go to unwind or feel calm (5 letters)
- 10. A hot, burning source of light and heat (4 letters)
Down
- 1. To put something out of sight (4 letters)
- 2. A large, rocky formation that rises above the earth (8 letters)
- 5. A large body of water vapor in the sky (5 letters)
- 7. The gas and particles released when something burns (5 letters)
- 8. A place beyond Earth, where planets and stars exist (5 letters)