Unit 2 Review

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Across
  1. 3. is the hottest and densest part of the sun, where nuclear fusion occurs to generate energy
  2. 5. a graph of a stars brightness and temperature
  3. 7. bodies that orbited the Sun prior to the planets' formation
  4. 8. stars are classified by the elements they absorb
  5. 13. the darkest portion of a sunspot
  6. 14. the tendency of an object moving above Earth's surface to curve away from its path of travel
  7. 16. a planet-centered solar system
  8. 17. the amount of energy radiated by a star
  9. 19. a Sun-centered solar system
  10. 20. a giant cloud of gas, dust, and ice in space
Down
  1. 1. is a tremendous explosion on the Sun that happens when energy stored in 'twisted' magnetic fields is suddenly released
  2. 2. the Sun is approximately ____ million miles away
  3. 4. temperature on the Hertzsprung-Russell diagrams is written in
  4. 6. to go around something in a closed orbit
  5. 9. the lightest portion of a sunspot
  6. 10. to spin on an axis
  7. 11. all of the light given off by a star
  8. 12. Latin word for the Sun
  9. 15. is also known as the tilt of the Earth
  10. 18. matter sticking together under the influence of gravity