Earth, Moon and Stars Vocabulary Crossword

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Across
  1. 5. a sun-centered model in which Earth and the other planets revolve around the sun
  2. 7. Earth’s orbit around the sun
  3. 8. an oval shape that describes the orbit of planets around the sun
  4. 11. small circles planets made as they moved along orbital paths in Ptolemy’s model
  5. 13. a pattern or group of stars that people imagine represents a figure, animal, or object
  6. 14. a body that orbits a planet
  7. 15. the study of space
Down
  1. 1. a small piece of rock or ice that burns up entering Earth’s atmosphere
  2. 2. the narrow band in the sky through which planets appear to move
  3. 3. visible motion of objects in the sky that may differ from their actual motion
  4. 4. a streak of light produced when a small piece of rock or ice burns up as it enters Earth’s atmosphere
  5. 6. a cold mixture of dust and ice that develops a long trail of light as it approaches the sun
  6. 9. an Earth-centered model with planets and stars circling Earth
  7. 10. an object that orbits the sun, is large enough to have become rounded by its own gravity, and has cleared the area of its orbit of any debris
  8. 12. a giant ball of superheated gas, or plasma, composed of hydrogen and helium