Astronomy Vocabulary

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Across
  1. 2. the study of the universe
  2. 5. happends when the planet tilts 2 times a year
  3. 6. the center of mass of two or more bodies
  4. 7. when two bodies split into 2
  5. 8. planet is in orbit closest to the sun
  6. 10. smaller nuke merge together
  7. 12. the tide after a quarter moon
  8. 14. solar radiation
  9. 17. motion of body such as planet or moon
  10. 18. a turning or spinning of the earth
  11. 19. transfer from heat to a substance
  12. 23. a rotation of the Earth's axis
  13. 24. waves from the sun
Down
  1. 1. burning
  2. 3. charged particles
  3. 4. when a planet Is in orbit
  4. 9. happends 2 times a year
  5. 11. when a fluid is being heated
  6. 13. spectrum complete range of waves
  7. 15. planets made out of gas
  8. 16. tide after a full moon
  9. 20. large cloud of dust
  10. 21. a wobbling on the Earth's axis
  11. 22. using light to grow plants
  12. 25. transfer of energy by electromagnetics