Across
- 1. Think of the______ when the fire truck is passing by
- 4. (25%)
- 9. This energy was found in the form of___.
- 11. Something that is expanding is___.
Down
- 2. just like sound light has _______.
- 3. the universe is___.
- 5. The first piece of ____ supporting the BBT.
- 6. If a star is moving away from us ,the light gets ___________.
- 7. (74%)
- 8. A theory of how the universe began is called the____.
- 10. light behaves like _____.