Antarctica, Seals, and Clothes

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Across
  1. 1. cloth
  2. 5. hit by something powerful again and again
  3. 7. land, ground, or earth
  4. 8. tiring and very hard to do
  5. 10. moved downward suddenly
  6. 13. fixed by sewing
  7. 15. a design that repeats
  8. 16. almost no plant or animal life
  9. 18. rested in a warm place
  10. 20. not able to be crossed or traveled through
  11. 21. large pieces of floating ice
Down
  1. 2. a soft sound
  2. 3. a place where boats are kept; a dock
  3. 4. having few or no people living in it
  4. 6. hung loosely
  5. 9. the line where the sky looks like it meets the sea or land
  6. 10. to ride on waves
  7. 11. a deep hole or crack
  8. 12. very dangerous
  9. 14. to sew the edges of cloth
  10. 17. a design of stripes that cross each other
  11. 19. a long wave that moves without stopping