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    MACHINES

                     A machine is a human-made thing that makes our work easier and faster.
                     There are many machines all around us. For example, a pair of scissors is a

                     simple machine used for cutting paper, cloth or other things.

                     COMMON FEATURES OF MACHINES

                     All machines have some common features:

                          Machines help you do work.
                                                                                            Walk around your
                          Machines save time.                                            classroom. Point out one

                          Machines make work easier.                                      natural thing and one
                                                                                           human-made thing.
                          Machines need power to work.

                          Tick ( ) if you know this.
                          ▶  Natural things are not made by humans.

                          ▶  A machine is a human-made thing.

                     HOW MACHINES WORK?

                     Just like humans need food, machines need fuel, electricity or human power
                     to work. For example:

                     1.  Machines that use fuel to work.

                                                                    Bike

                                   Airplane
                                                                                                  Truck

                                                                                           Computer– A Smart Machine   9

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