SPACE CROSSWORD

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Across
  1. 4. twinkles in the night sky
  2. 5. the layer of gas that surrounds earth beginning with A
  3. 6. the earth and planets do what around the sun?
  4. 7. the force that keeps humans to the ground
  5. 8. something very hot and gives us light during the day
  6. 9. the largest planet
Down
  1. 1. makes up all of the planets
  2. 2. also known as a shooting star
  3. 3. the planet we live on
  4. 5. a person who travels in a spacecraft