Astronomy Crossword

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Across
  1. 4. Proposed geocentric model.
  2. 5. First proposed heliocentric model.
  3. 6. Way The galaxy our solar system is in.
  4. 7. What do astronomical units measure.
  5. 8. Outer planets are made mostly of.
  6. 10. Inner planets are made mostly of.
  7. 12. Earth centered solar system.
  8. 14. Discovered 4 moons orbiting Jupiter with telescope.
Down
  1. 1. Proposed elliptical orbit of planets.
  2. 2. Sun centered solar system.
  3. 3. Why planets orbit the sun.
  4. 6. Space rock that makes it to earth's surface.
  5. 9. Found in belt between Mars and Jupiter.
  6. 11. Shooting star.
  7. 13. The red planet.