Simple Machines

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Across
  1. 5. skateboard ramp
  2. 8. makes work easier
  3. 10. pivot point for a lever
Down
  1. 1. pulley system changes this
  2. 2. door knob
  3. 3. elevator
  4. 4. door stopper
  5. 6. jar lid
  6. 7. number of simple machines
  7. 9. example of simple machine