Across
- 1. Where are heavier atoms created
- 4. Who observed the universe expanding
- 5. Where did the universe from
- 7. What creates celestial bodies
- 9. what comes before a planet
- 10. How many billion years old is the universe
- 11. What element was first created in the big bang
Down
- 2. What are the inner planets
- 3. what forms first in a solar system
- 6. What happened to energy when it slowed down
- 8. What happens to the distance between planets as you get farther from the sun