simple machines

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Across
  1. 1. an incline plane thicker at one end than the other
  2. 2. a simple machine that is used to raise and lower things and hold things together
  3. 4. a flat surface with one edge higher than the other
  4. 5. a simple machine with one grooved wheel connected by a rope
Down
  1. 1. a moveable simple machine centered on a fixed point
  2. 3. bar used for raising or moving weights