Science home work

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Across
  1. 2. is in the milky way galaxy
  2. 6. is what causes you body to stay on Earths surface
  3. 7. galaxies have "arms" coming out from the middle
  4. 8. galaxies look like a foot ball
Down
  1. 1. is about the amount of stars in our galaxy
  2. 3. systems are in the milky way
  3. 4. is the solar system we live in
  4. 5. galaxies have no shape
  5. 6. are made of gas and other things
  6. 7. is the person who did this homework