Science Lab Crossword

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Across
  1. 2. space the physical universe beyond the earth's atmosphere.
  2. 3. All existing matter and space considered as a whole
  3. 5. a system of millions or billions of stars with gas and dust
  4. 6. Looks like a football
  5. 7. the collection of eight planets and their moons in orbit around the sun
  6. 8. The galaxy we live in
Down
  1. 1. positioned in or relating to the sky
  2. 4. Has Arms and a core
  3. 5. A force
  4. 9. Has no shape or form