Vocab Crossword

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Across
  1. 3. The largest of the planets
  2. 8. Two ice giants.
  3. 10. smallest planet in the solar system.
  4. 12. substance that cannot be broken down into any other substance.
  5. 14. carbon atom.
  6. 15. a science that deals with matter.
Down
  1. 1. Sixth planet from the sun.
  2. 2. A giant planet with a ring of ice particles.
  3. 4. Two or more elements chemically combine.
  4. 5. Third planet from the sun
  5. 6. A huge collection of gas , dust and billions of stars.
  6. 7. divided substance.
  7. 9. A ball of gas in space.
  8. 11. Second planet from the sun.
  9. 13. The roman god of war.