Across
- 3. 11 first to land on the moon
- 4. first artificial earth satellite
- 5. water
- 8. my planet
- 9. closest rock to the earth
- 10. smallest planet
- 11. largest planet
- 12. air
- 13. robot on mars
Down
- 1. life
- 2. a married planet (hint:god put a ring on it )
- 3. rock that wiped out the dinosaurs
- 6. source of energy
- 7. earth
- 9. red planet