Space

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Across
  1. 2. composed of gas, big, have ring systems
  2. 4. Small, rocky globes w/ dense atmospheres
  3. 8. 2nd planet in solar system, earth's sister
  4. 9. higher high tides, lower low tides
Down
  1. 1. 5th planet in solar system, largest planet
  2. 3. lower high tides, higher low tides
  3. 5. a force that keeps all planets in position
  4. 6. a celestial body that reflects light from the sun
  5. 7. 4th planet in solar system, red planet