Simpe Machines

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Across
  1. 3. When we want to attach two things which simple machine do we use ? (screw)
  2. 5. Two or more simple machines together ? (compoundmachine)
  3. 6. An axe is which type of simple machine ? (wedge)
  4. 7. What type of simple machine is a ramp ? (inclined plane)
Down
  1. 1. Dumbles are which type of simple machine ? (wheelandaxle)
  2. 2. What is the base of the lever ? (fulcrum)
  3. 4. How many types of pulleys are there ? (three)