simple machines

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Across
  1. 3. such as a ramp or a blade
  2. 6. removal of metal bottle caps
  3. 8. rigid bar pivoted around a fulcrum
  4. 10. sharpening a pencil by rotating
  5. 12. cylinder rolled over pastry or dough
  6. 13. a heavy iron bar
  7. 14. a long plank balanced in the middle
Down
  1. 1. tilts or opens at the back for unloading
  2. 2. Bicycle, Ferris Wheel, Fan,
  3. 4. broad flat blade and typically upturned sides
  4. 5. inclined plane installed
  5. 7. having one thick end and tapering
  6. 9. vehicle with four wheels
  7. 10. machine made of a wheel
  8. 11. sharp-pointed metal pin