Across
- 2. A ____ is a large collection of stars,gas,dust held together by gravity.
- 3. What separates the inner planets from the outer planets?
- 7. The chemical makeup of the sun is?
- 8. The number of waves produced in a given amount of time is the waves is?
- 9. All colors of light combine to make white.
- 10. Matter is a ____ property.
Down
- 1. Energy is transferred to the sun to earth mainly by___.
- 4. What does the earth's rotation on its axis cause?
- 5. The faster something vibrates the___ the pitch is.
- 6. Any living thing is a(n)____.