Roque's and Lucas crossword of universe

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Across
  1. 2. A planet that is made of gasJupiter
  2. 4. The body that the Earth revolves around
  3. 6. body that the Earth revolves around
  4. 7. Something that revolves around the Earth
  5. 8. Something that has on Earth
  6. 9. The profession that studies the universe
  7. 10. something that the trees make
Down
  1. 1. Things that are gravitating in space
  2. 3. Somethings that is made of ice and rock
  3. 5. Where the Earth is. Two words
  4. 7. Where the Solar System is