Across
- 7. In how many years from now will the sun most likely engulf the inner planets and burst?
- 9. Earth and ocean are a indirect result of a ?
- 11. what are huge rotating aggregations of stars,dust, and gas held together by?
- 13. the universe started the expansion from what point?
- 15. was the supernova a explosion of a star?
- 16. what is our galaxy known as?
- 17. what kind of water does scientists look into the ocean?
Down
- 1. How old were the oldest fossils from the bacteria life organisms?
- 2. how many years ago was earth formed?
- 3. how long did rain fall happen for before the oceans were formed?
- 4. the dominant scientific theory that occured 15 billion years ago that formed the universe.
- 5. Who suggested that heat energy from thermal vents in the sea have formed into complex molecules of life?
- 6. what type of object can give us information about the conditions in wish the solid planets formed?
- 8. what process formed the first clouds?
- 10. material that accreted had mineral and what from the earths crust?
- 12. Inner material concentrated into a ?
- 14. what chemical made up the planets,stars,oceans, and organisms?