Across
- 3. How far things are from each other.
- 4. The outside of things
- 7. A smart robot that travels in space
- 8. Earth's hot center
- 10. A force that pulls everything to the ground
- 11. A line across a circle
Down
- 1. Space scientists who study stars and planets
- 2. Anything that takes up space and has weight
- 5. Something really special
- 6. Holes made by space rocks
- 9. The circle things take in space