Across
- 6. As scientists study the far reaches of the universe, which elements do you think are still abundant today?
- 7. What force is responsible for the certain creation of galaxies and stars?
- 8. When were the first recognizable elements throughout to be created?
Down
- 1. Why do you think hydrogen, helium, and lithium were the first elements to show up?
- 2. In the future, what would you expect to happen to distant galaxies?
- 3. What subatomic particles were the first to show up in the universe?
- 4. Which were the first present elements in theuniverse?
- 5. What happened to the temperature of the universe after 300 thousand years.