Solar System Crossword

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Across
  1. 4. the other type of gas that fuses in the Sun
  2. 5. a body of ice, rock and dust that orbits the Sun
  3. 8. to become a planet, the object must clear its _______ ____
  4. 9. meteoroid that entered the Earth's atmosphere
  5. 10. a meteor that struck land in Earth
  6. 13. a ring of gas and dust after a red giant dies
  7. 16. where asteroids can be found; in between Mars and Jupiter
  8. 18. how many miles is a light year?
  9. 19. how many stars are in our galaxy?
  10. 20. the measurement proportion used to enlarge or reduces actual measurement for a model
Down
  1. 1. a rotating disc of dust and gas that forms around a protostar
  2. 2. what is a star made of?
  3. 3. what do the most massive stars become?
  4. 6. to be a planet, the object must orbit a ____
  5. 7. cloud of dust and gas, helps with star making
  6. 11. how many stars are in our SS?
  7. 12. one type of gas that fuses in the Sun
  8. 14. what is the universe mainly made of?
  9. 15. a small body moving in the SS
  10. 17. what does a star leave behind after a supernova?