Celestial Objects Crossword

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Across
  1. 3. a rock traveling through space, outside of the atmosphere
  2. 5. Asteroid _______; This region contains millions of these space rocks, ranging in size from tiny pebbles to dwarf planet-sized bodies
  3. 7. this planet is 1.5 AU from the sun
  4. 8. a rock from space that made it to a planet's surface
  5. 13. the 3rd planet from the sun; our home
  6. 15. this planets is best known for its rings
  7. 17. the true center of the solar system; creates the most gravity out of all other celestial bodies in the solar system
  8. 18. refers to the orbital movement of a celestial body around the Sun
  9. 19. celestial objects made up of mixtures of rock, ice, and dust, loosely held together by the gravitational attraction between their particles
  10. 21. a natural satellite that orbits a planet
  11. 22. refers to a celestial body spinning on its own axis
Down
  1. 1. the 1st planet from the sun
  2. 2. this planet is 30AU from the sun - the furthest
  3. 4. the theory that Earth is the center of the solar system
  4. 6. ________ planet; orbit the sun and are round in shape like regular planets, but lack enough mass to clear their orbital paths of other debris
  5. 7. the streak of light produced when a small space rock or particle enters a planet’s atmosphere and burns up due to friction with the air
  6. 9. this planet is 19.2 AU from the sun
  7. 10. the theory that the Sun is the center of the solar system
  8. 11. the 2nd planet from the sun
  9. 12. this planet is the largest in the solar system
  10. 14. pieces of rock and ice that never clumped together into a planet
  11. 16. the result of the bending of space-time caused by mass
  12. 20. a large celestial body that orbits a star, such as the sun