Simple Machines

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Across
  1. 1. Machines make this easier
  2. 2. A see-saw is an example of a "First Order -----"
  3. 5. The pivot point of a lever
  4. 7. The small ridged machine that can be used to fasten two objects together
  5. 9. A ramp is an example of a "-------- Plane"
  6. 10. Wheels with teeth
Down
  1. 1. A simple machine that rolls easily
  2. 3. The force required to move a load
  3. 4. A machine is never 100% efficient due to --------
  4. 6. The simple machine that uses a rope and a wheel to lift loads
  5. 8. A simple machine that looks like a triangle with a sharp point
  6. 11. The rod that goes through a wheel and allows it to turn