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Simple Machines


Two students were at the Simple machines table busily working at taking apart an old typewriter with a screwdriver.



T–Can you tell me what you are doing here boys?

S–We’re fixing the airplane engine.

T–What’s the matter with the airplane engine?

S–It’s broken and the airplane won’t fly.

T–How are you going to fix it?

S–We have to use the screwdriver to fix parts of the engine. ( He flicks a switch up and down) This part of the engine makes the plane go up and down and opens the doors and it’s broken.

T–How long will it take to fix the engine?

S–I think it will take a couple of hours.



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