simple machines

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Across
  1. 5. a sharp angle
  2. 6. a wheel with rope on it to lift stuff
  3. 7. is round
  4. 9. wheelbarrow
  5. 10. seesaw
Down
  1. 1. makes work easier
  2. 2. baseball
  3. 3. the pivot point on a board
  4. 4. a horizontal angle that is flat
  5. 8. a round thing with a bar