Prehistoric times

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Across
  1. 2. to move a small light boat through water,
  2. 5. a place where water from a river or stream falls down over a cliff or rock
  3. 6. A place you see discoveries
  4. 7. a strong hard hat
Down
  1. 1. a container with a narrow top for keeping liquids in
  2. 3. a fact or thing that someone finds out about
  3. 4. you use for protection