Across
- 2. Large, flat areas of land with few trees
- 4. When the Moon or Sun is hidden for a short time
- 10. Something that helps us see and comes from the Sun or lamps
- 11. A warm, wet forest with many tall trees and animals
- 13. The galaxy that includes our solar system
- 14. An invisible line that a planet spins around
- 15. Warmth or high temperature
Down
- 1. A person trained to travel in space
- 3. A person who studies the world and asks questions
- 5. A person who travels to learn about new places
- 6. A group of stars, dust, and gas held together in space
- 7. A huge ball of burning gas in space
- 8. The path one object takes around another in space
- 9. A low area of land between hills or mountains
- 12. How hot or cold something is