Mod 30 - The Solar System

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Across
  1. 1. labelled a distant planetoid; smaller than Pluto
  2. 3. smallest planet in our solar system
  3. 5. rocky objects that orbit the Sun
  4. 6. referred to as the "red planet"
  5. 8. second largest planet in our solar system; has very pronounced rings
  6. 10. life beyond Earth
  7. 11. planet referred to as Earth's sister
  8. 15. model of solar system with Earth at center
Down
  1. 2. planets in orbit around stars other than our Sun
  2. 4. composed of dust and rock particles, frozen water, methane and ammonia
  3. 6. sand- to boulder-sized objects in the solar system
  4. 7. largest planet in our solar system
  5. 9. model of solar system with Sun at center
  6. 12. planet that has mild temperatures that allow water to be a solid, liquid, or a gas
  7. 13. planet with 27 known moons and 13 faint rings
  8. 14. planet discovered in 1846; has a 165-year orbit around the Sun