Across
- 3. What two atomic particles created the first three elements?
- 6. What do scientists believe came before the Universe?
- 7. The first element created was?
- 9. What was the Universe full of before anything?
- 11. If most galaxies are moving towards us what shift is that called?
- 12. When galaxies are expanding and they are red what is this shift called?
Down
- 1. The Universe started out very hot and dense now that it's expanding it became very?
- 2. How many years did scientists think the Big Bang occurred?
- 4. Who was the first person to show that galaxies moving away from the Milky Way?
- 5. When galaxies are moving far away from us its called?
- 8. Who was the first person to come up with the name of Big Bang?
- 10. What did Albert Einsteins and Sir Isaac Newton agree that the universe was?