Simple Machines

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Across
  1. 3. A stiff bar that pivots on a point to move a load.
  2. 5. and Axle 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. Plane A flat surface set at an angle to help lift objects.
  2. 2. A simple machine with a sharp edge used to split or cut things.
  3. 4. A wheel with a rope used to lift or lower objects.