Stars and Gravity

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Across
  1. 2. - color of the hottest star
  2. 4. - a measure of how much light a star gives off
  3. 6. - a ball of hot, glowing gases
  4. 9. - a group of stars that make a pattern
  5. 13. - imaginary line around which Earth spins
  6. 14. - color of the coolest star
  7. 15. - Earth's axis is _________
  8. 16. - moon orbits the Earth due to what
  9. 17. - to make one complete spin on its axis
  10. 18. year - how long it takes the Earth to make a revolution around the Sun
Down
  1. 1. - largest stars
  2. 3. - what is needed to temporarily overcome the force of gravity
  3. 5. - what star is the source of light on Earth
  4. 7. - another name for the North Star
  5. 8. - objects with greater mass have ____________ gravity
  6. 10. - tool that makes studying patterns of stars easier
  7. 11. - constellations helped travelers do what
  8. 12. Dipper - most recognizable constellation