Solar System

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Across
  1. 2. fourth planet from the sun
  2. 5. loose balls of rock and ice that have long narrow orbits
  3. 7. fifth planet from the sun
  4. 8. third planet from the sun
  5. 9. a meteoroid that comes through Earth's atmosphere and strikes Earth's surface
  6. 13. The _______ planets are made mostly of rock and metal.
  7. 14. planet closest to the sun
  8. 15. seventh planet from the sun
  9. 17. outer layer of the sun's atmosphere
  10. 18. one of the five known dwarf planets in our solar system
  11. 19. natural satellite
  12. 20. one of the 2 main gases that make up the sun
  13. 23. this is round and orbits the sun
  14. 25. dark areas on the sun
Down
  1. 1. inner layer of the sun's atmosphere
  2. 3. average distance from the center of the sun to the center of the Earth
  3. 4. accounts for 99.85% of the mass in our solar system
  4. 6. streak of light from meteoroid coming through Earth's atmosphere
  5. 9. chunk of rock or dust smaller than an asteroid
  6. 10. The ______ planets are made mostly of gas and liquid.
  7. 11. second planet from the sun
  8. 12. sixth planet from the sun
  9. 16. outer layer of the sun's interior - _______ zone
  10. 21. furthest planet from the sun
  11. 22. sun,planets,their moons,and a variety of other smaller objects
  12. 24. Many of these are found between the orbits of Mars and Jupiter.