Simple Machines

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Across
  1. 2. A wheel with a rope used to lift or lower objects.
  2. 4. A circular object that turns around a central rod to make work easier.
  3. 6. An inclined plane wrapped around a cylinder.
Down
  1. 1. A simple machine with a sharp edge used to split or cut things.
  2. 3. Plane A flat surface set at an angle to help lift objects.
  3. 5. A stiff bar that pivots on a point to move a load.