Across
- 1. are the brightest stars with the shortest lives
- 3. a baby star, or the first stage of a stars life
- 6. a large cloud of dust and gas in space
- 8. this force pulls the gas and dust in space together to begin forming a star
- 10. Our star is about 5 ___________ years old.
Down
- 2. the H-R Diagram measure a stars luminosity and this
- 4. the end of a very large stars life
- 5. the hottest stars are this color
- 7. the process of hydrogen fusing together to become helium that gives us the energy from the sun
- 9. the coolest stars are this color