Across
- 1. Used to compare the size of other stars with our sun.
- 5. The death of a large star by explosion.
- 8. The distance between any two corresponding points that are adjacent on a wave.
- 12. Areas of stars that spread out from the center
- 15. Infrared___-Electromagnet waves with longer wavelengths than visible light.
- 16. An instrument that collects light or other electromagnet radiation.
- 17. Electromagnetic waves that are between radio waves
- 19. Galatic___-Rotational center of a huge galaxy.
- 21. Electromagnet___ Radiation consisting of electric and magnetic waves.
Down
- 1. A self-leminous celestial body consisting of a mass of gas held together by its own gravity.
- 2. Provide us with visible light spectrum.
- 3. Large cloud of gas and dust in interstellar space.
- 4. ___Spectrum-Vast arrangement of electromagnetic waves in relation to their wavelengths.
- 6. ___ Waves-Electromagnetic waves with long wavelengths.
- 7. Beginning point at which something begins.
- 9. Big Bang___ A theory that says the universe begin as a small point that expanded rapidly.
- 10. A unit of length equal to the distance that light travels through space in 1 year.
- 11. A object with more than 4 solar masses.
- 13. All space and the matter space contains.
- 14. ___ Model-A representation of an object that is accurate in its proportions to the actual object.
- 18. ___Data- Information obtained from experiments or observations that represent the qualitative.
- 20. A large grouping of stars in space.