Across
- 3. something that never changes
- 5. large mass that orbits sun
- 8. moves in a predictable path
- 9. someone who travels in space
- 10. send into the air
Down
- 1. the most something can hold
- 2. how something turns on its axis
- 4. slowing force
- 6. stop after a set time
- 7. science that solves problems