Earth’s LID Crossward Puzzle

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Across
  1. 4. what is the second most common gas found in the air we breath?
  2. 5. how much percent does water cover the earth?
  3. 7. how long does it take earth to rotate?
  4. 8. what is the smallest continent?
  5. 10. what is the largest ocean on the earth?
  6. 12. what is earths core made of?
  7. 14. when is earth closest to the sun?
  8. 15. how many meteor showers are there in a year?
Down
  1. 1. what is earth tallest mountain?
  2. 2. when can we see a lunar eclipse?
  3. 3. how many continents are there?
  4. 6. what is the smallest ocean in the world?
  5. 9. how many lunar eclipses are there in a year?
  6. 11. who was the first person on the moon?
  7. 13. what is the second largest country in the world?