Simple Machine Crossword

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Across
  1. 6. This simple machine has two circle objects.
  2. 8. What is a inclined plane that is wrapped around like a cylinder?
  3. 9. What class lever is a load in the middle?
  4. 10. What type of simple machine is an axe?
Down
  1. 1. What's the equation for work?
  2. 2. What's made up of two or more simple machines?
  3. 3. What type of lever has the fulcrum in the middle?
  4. 4. This simple machine must have a chain, rope, or belt.
  5. 5. What class is the effort in the middle?
  6. 7. What type of simple machine is a ramp?