Simple machines

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Across
  1. 1. example of wheel and axle and moves in a circular motion
  2. 2. tool that help us to do our work easily
  3. 5. a sharp cutting edge
  4. 7. part of the lever supplies the force to move something
  5. 8. bottle opener is a example of this type of lever
  6. 9. a large wheel attached to a rod called an axle
  7. 10. a hard rod with well-cutout spiral threads on it
Down
  1. 1. the fulcrum is between the load and effort
  2. 3. a sloping surface
  3. 4. a long rod that moves around a fixed point
  4. 6. a grooved wheel with a rope to raise, lower or move a load