The Solar System

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Across
  1. 2. There are eight ___ in the solar system.
  2. 5. The moon is ___ than the Earth.
  3. 7. Mercury is the ___planet to the Sun.
  4. 8. The sun is the ___thing in the solar system.
Down
  1. 1. The Moon is lighter than the Earth. The Earth is ___ than the Moon.
  2. 3. The Earth is ____ than the moon.
  3. 4. Neil Armstrong was the first man to land on the ___.
  4. 6. The first planet is the ___ because it is nearest to the sun.
  5. 9. The ___is the biggest object in the solar system.