Tools and machines

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Across
  1. 2. the thin or sharp part of the wedge that splits the object
  2. 4. There can be a steep or gentle of this.
  3. 8. something used to communicate with others.
  4. 9. A rod in the middle that the wheel turns around.
  5. 10. A simple machine that uses a fulcrum.
Down
  1. 1. it helps people to split or cut something.
  2. 3. The pull or push force.
  3. 5. A simple machine that uses a rope and wheel.
  4. 6. A round thing that turns.
  5. 7. A thing that someone created or improved.