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Try This Logical Thinking

Who am I?

• I help you keep food fresh. __________________

• I help you wash clothes. __________________

• I help you tell time. __________________

• I help you do calculations. __________________

TYPES OF MACHINES

Machines need power to work. Some machines need man-power to work,
while others need fuel or electricity.

Lemon Squeezer Bicycle Sewing Machine

The machines shown above require muscle power to run which comes from

human effort or animals.
The machines shown below run on power which comes from fuel.

Aeroplane Car Bike

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