What in the World?!

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Across
  1. 2. Halves of the Earth.
  2. 3. Very large areas of land on Earth
  3. 6. Round, three-dimensional models of the Earth shaped like a ball.
  4. 9. the meaning of the first morphograph “meri” of the word meridian
  5. 10. study of the Earth, its land, its features, and its people
  6. 14. this morphograph is Greek for expression or description
  7. 15. Imaginary horizontal lines that measure how far north or south a place is from the Equator.
  8. 16. another name for lines of latitude
  9. 18. Longitudinal lines are positioned this way
  10. 20. Latitude lines are positioned this way
  11. 21. north, south, east, and west.
Down
  1. 1. There are this many major continents
  2. 4. this geometric solid resembles a ball
  3. 5. this morphograph means half
  4. 7. the Equator is at this many degrees latitude
  5. 8. The prime what is an imaginary line running north to south at 0 degrees longitude.
  6. 11. Huge bodies of salt water that cover most of the Earth's surface
  7. 12. Flat, two-dimensional drawings of all or part of the Earth.
  8. 13. This rose is a small drawing on a map or globe that shows directions
  9. 14. this morphograph is Latin for earth, so we don’t call it orthography
  10. 17. An imaginary line running east-west around the middle of the Earth at 0 degrees latitude.
  11. 19. Imaginary vertical lines that measure how far east or west a place is from the Prime Meridian.