key word 1 unit 7

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Across
  1. 3. A set of instructions for a computer to follow.
  2. 5. A wheel with a rope that helps lift or move objects.
  3. 6. A fast, track-based ride with steep drops and loops.
  4. 9. A remote-controlled or autonomous flying device.
Down
  1. 1. Machine A machine made of two or more simple machines.
  2. 2. A large lifting machine used for moving heavy objects.
  3. 4. A rigid bar that pivots on a point to lift or move loads.
  4. 6. A sloped surface used to raise or lower objects.
  5. 7. Machine A basic mechanical device that makes work easier.
  6. 8. Wheel A large, rotating wheel with passenger cabins.