Across
- 4. All space and the matter space contains
- 6. ___Arms Stars that are from the center of the galaxy
- 8. The change in wavelength that allows us to determine is comming at us or away from us
- 9. Its helps us see
- 10. Electromagnetic waves with long wavelengts and low frequencies
- 13. Electromagnetic waves with a shorter wave length than visible light
- 16. A unit of length equal to the distance that light travels through space in a year
- 17. A large grouping of stars in space
Down
- 1. A big hot ball of gas
- 2. The death of a large star by explosion
- 3. __ Galaxy Its Earth's galaxy
- 5. Electromagnetic waves with longer wavelengths than visible light consisting of electric and magnetic waves that travel at the seed
- 7. How fast light travels 300000km/sec
- 11. A hole that sucks up every thing in its path
- 12. It is a wave that your car picks up when your listing to the raido
- 14. The distance bettween any two corresponding points that are adjacent on a wave
- 15. It keeps the Earth warm
- 18. It helps to see if you broke a bone