Continental drift theory crossword puzzle by:ESM

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Across
  1. 4. A slab of continental plate
  2. 6. A big chunk of ice that is "USUALLY" up in the mountains
  3. 7. The plates continuously moving called ________
Down
  1. 1. Alfred Wegener came up with it but nobody believed him
  2. 2. The person behind the Continental drift theory
  3. 3. bones
  4. 5. A thinking or idea that everyone agrees upon