Our World

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Across
  1. 2. This planet has 53 known moons
  2. 5. The gas that jump started complet life on Earth
  3. 8. The ____ layer is in the stratosphere and protects us from the sun's rays
  4. 10. The greenhouse gas that is so thick on Venus
  5. 11. This planet has 13 moons
  6. 12. Where the space station is
  7. 13. This planet is our hottest
Down
  1. 1. Bottom layer of our atmosphere
  2. 3. This is what happens in the troposphere
  3. 4. This is the movement of carbon from one place to another
  4. 6. Second layer of our atmosphere
  5. 7. This naturally takes carbon out of our atmosphere
  6. 9. A very cold layer of our atmosphere
  7. 11. The most abundant gas in our Earth's atmosphere