Across
- 3. to revolve around something like earth around sun
- 5. the study of space
- 7. to spin on an axis
- 9. an object that revolves around a larger object
Down
- 1. the time it takes to go around something
- 2. 27.3 days is the time the moon rotates and revolves
- 4. 24 hours for earth to rotate all the way around once
- 6. plane the path that an object orbits something
- 8. 365 days for earth to go around sun
- 10. imaginary pole that earth spins on