Simple Machines

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Across
  1. 2. a one part machine
  2. 4. a wheel with a rope over the wheel
  3. 6. a bar that is on a fulcrum. they can be used to lift heavy furniture.
  4. 7. an inclined plane that can wrap around something like a water bottle top.
Down
  1. 1. a wheel with a bar trough it
  2. 3. a ________ ______ makes something from a low surface to a high surface.
  3. 5. 2 inclined planes that were put together to make a _______.