Across
- 4. What helps things fall and stay on the floor
- 5. The universe we live in.
- 6. Make up all matter
- 7. Helps study light.
Down
- 1. The theory of creation
- 2. An abundant element in the universe.
- 3. Contains all matter.
- 8. the closest star in our universe
- 9. This shows how the universe was in its early days.