The Big Bang
Across
- 4. study of light
- 7. protons, electrons and neutrons
- 10. lightwaves that make it seem stars are getting farther
Down
- 1. made up of everything
- 2. ligthwaves that make it seem stars are getting closer
- 3. one of the 3 first elements made following the Big bang
- 5. big ball of gas
- 6. left over radiation from the Big bang
- 8. space
- 9. theory of how the universe began