Continental drift

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Across
  1. 5. one big piece of land
  2. 6. a fresh water crocodile-like reptile
  3. 7. woody shrub or tree
  4. 8. One super continent
Down
  1. 1. Discovered the theory of continental drift
  2. 2. The continents were once in a big piece of land called Pangea and drifted away
  3. 3. shovel reptile
  4. 4. remains of something that have died in the past