Mercury and Venus

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Across
  1. 1. The length of one year on Mercury is _________ than the length of one year on Earth
  2. 8. Mercury is one of the 4 inner or ________ planets
  3. 9. Mercury has an extremely thin ___________
  4. 10. Venus is the ________ planet in the solar system
  5. 11. Mercury is named after the Roman ________ god
  6. 12. Mercury is similar in size and appearance to the _________
  7. 13. Because it is so bright, Venus is often mistaken as a _________
  8. 14. Life may exist in the ________ of Venus
Down
  1. 1. In terms of size, Mercury is the __________ planet in the solar system
  2. 2. Day/Night temperatures on Mercury are very _______
  3. 3. Mercury is the _________ planet from the Sun
  4. 4. Mercury has _________ moons
  5. 5. Unlike Earth, Mercury does not have __________
  6. 6. the atmosphere on Venus is so hot because CO2 is a ___________ gas
  7. 7. In terms of speed, Mercury is the _________ planet in the solar system
  8. 8. Mercury's axis is only tilted _____ degrees