Our Solar System

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Across
  1. 4. The __ from the sun keeps the other planets from drifting into outer space.
  2. 5. All the planets rotate around the __.
  3. 7. There are ___ planets in our solar system.
  4. 8. Jupiter is made mostly of ___ and has at least 67 moons.
  5. 12. Neptune has the __ orbit around the sun of all the planets, about 164 years.
  6. 13. Venus is the __ planet in the solar system.
Down
  1. 1. Earth is the ___ planet from the sun.
  2. 2. Mars has ___ in its soil giving it a red color.
  3. 3. The sun is composed of mostly ___ and helium gases.
  4. 6. Uranus has clouds made from ___ surrounding it that give it its blue color.
  5. 9. Mercury has the __ orbit around the sun, 88 days.
  6. 10. The rings of ___ are made from ice, dust, and rocks.
  7. 11. In 2006 ___ was proclaimed a dwarf planet, not a regular planet.