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Across
  1. 2. A simple machine made of a bar that pivots around a fulcrum.
  2. 3. The force you apply to a machine.
  3. 6. The distance between the threads on a screw.
  4. 7. The spiral ridge on a screw.
Down
  1. 1. A machine used to split things, like an axe head.
  2. 4. Another word for an inclined plane.
  3. 5. A simple machine that is like an inclined plane wrapped around a cylinder.