Crossword by Isabel H and Sophia Negri

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Across
  1. 3. you find this on a light bulb
  2. 4. and axe is a good example of this
  3. 5. has a rope used in wells
  4. 8. this simple machine makes a ramp (put a dash-between the words)
  5. 9. a wedge is a example of a ______-_______
Down
  1. 1. you can use _____ to change directions of things
  2. 2. used to make a ferris wheel
  3. 6. measures the amount of work put into a machine
  4. 7. this simple machine made the see-saw possible
  5. 10. amount of energy used