Across
- 2. Earth _____ around the sun
- 5. Used to look at planets.
- 7. Earth spins around an _____
- 8. Light travels through object and color
- 10. The movement of something
- 11. Planet we live on
Down
- 1. Sun-centered system.
- 3. Study of space
- 4. An invisible force
- 6. Used to look at cells
- 9. Theory never grasped by C.