Across
- 4. The thoery that suggests our universe is always expanding
- 7. First subatomic particle to show up in the universe
- 8. The particles the universe was full of when it began
- 10. came up with the theory of relativity
Down
- 1. All matter and space that exists
- 2. Residual energy left over from the origin of the universe
- 3. First element to be created
- 5. discovered all galaxy's are moving apart from each other
- 6. Second element to be created
- 9. Electro magnetic spectrum used to study light