Across
- 1. A invisible line through the middle of Earth
- 2. A natural satellite of Earth
- 3. The source of heat and light in our solar system
- 5. The imaginary lie tough the perimiter of Earth
- 8. The path of an objectin space
- 9. What happens once every year and 1/4 of a day
Down
- 1. What protects the Earth
- 4. What causes night and day
- 6. What keeps you on the ground
- 7. The only habital planet in the Milky Way Galaxy