Across
- 2. The Earth was formed 4.5 ______ years ago.
- 3. One of the first two elements created after the Big Bang was...
- 5. A body that can come together to make a planet
- 7. Who created the formula E=Mc²
- 12. What force makes things spin faster as something is pulled closer to the center
- 14. What star do the planets revolve around
- 15. What causes the nebula particles and gases to stick together?
- 16. The Solar nebula is formed from dust, ice and _____.
Down
- 1. energy is slowed down and transformed into...
- 4. Which planet in our solar system is the farthest away from the sun
- 6. once the center of a solar nebula gains so much mass it forms a ____.
- 8. The universe continues to...
- 9. What is considered the start of our universe?
- 10. Which planet in our solar system is the smallest
- 11. What planet is in between Earth and Mercury
- 13. The solar nebula forms the shape of a _______ disk.