Earth and Space

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Across
  1. 1. What is the name of the galaxy our solar system is in?
  2. 4. What is the name of the plates that make up the Earth's crust?
  3. 7. List the first letters of the planets in our solar system, starting closest to the Sun.
  4. 10. How many planets are there in our solar system?
  5. 12. Which planet is referred to as the Red Planet?
  6. 13. What is the force that keeps all of the planets in orbit around the Sun?
Down
  1. 2. What is the hottest layer of Earth?
  2. 3. Which planet is the closest to Earth and is also the hottest in the solar system?
  3. 5. What do we call the large wave that can be created by an earthquake in the sea?
  4. 6. What is the name of the celestial body that was removed as a planet in 2006?
  5. 7. What do we call the substance that makes up most of the mantle?
  6. 8. Which planet takes approximately 365 days to orbit the Sun?
  7. 9. What is the closest planet to the Sun?
  8. 11. What is the name of the second largest planet in our solar system?