Astronomy 1 review

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Across
  1. 2. the center of the sun
  2. 5. the Earth has a ______ of 23.5 degrees
  3. 6. the movement of Earth around the Sun
  4. 8. the earth has a _____ and winter solstice
  5. 12. the moon blocks out all light completely
  6. 13. theory that explains how universe started as single point
  7. 14. sunlight that creates warm weather and summer
  8. 16. the tilt affects the earth by creating
  9. 18. the model that states that everything rotates around the sun
  10. 21. what is responsible for pulling particles into matter clumps
  11. 23. cloud of gas, ice, dust
Down
  1. 1. when a celestial body spins on center axis
  2. 3. an astronomer who believed in the geocentric model
  3. 4. is the shortest day of the year
  4. 7. the moon is growing in appearance
  5. 9. lunar eclipse affects how light shines on the
  6. 10. sunlight that creates cold weather and winter
  7. 11. the moon is shrinking in appearance
  8. 15. what occurs during the first day of autumn
  9. 17. means "spring"
  10. 18. it takes 24 _____ for one rotation of earth
  11. 19. a layer of the sun beneath the atmosphere
  12. 20. another name for revolution
  13. 22. how long does it take for the earth to orbit the sun