Machines

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Across
  1. 4. Opposite of simple – a machine made of many parts.
  2. 5. A simple machine used to lift or move objects by pivoting.
  3. 6. A round object that helps things move or roll easily.
Down
  1. 1. A machine that uses a wheel and a rope to lift things.
  2. 2. A machine part with a thread used to fasten or lift.
  3. 3. A toothed wheel that connects and turns another wheel.
  4. 6. What machines help us do with less effort.