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Chapter Profile
                  For example,









                    Tree             Sun           Cat                       Pencil       Television         Fan
                                Natural things                                        Human-made things


                         WHAT ARE MACHINES?


                  Machines are things made by human. They make our work easy. They also save
                  our time. Some machines need electricity to work and some do not. We use many

                  machines in our daily life. Some examples of machines are given below:






                                             A refrigerator keeps our food fresh. It also keeps water cool.








                      Refrigerator
                  A washing machine helps us to wash clothes.




                                                                                                    Washing machine
                                                     A television is used for entertainment. We can watch

                                                     movies, news, sports and cartoons on TV.



                             Television
                                                                                                            12:20


                  We use a telephone or a mobile phone to talk to people who are far
                  away.


                                                Computers need energy to
                                                 work, just like trees need                              Mobile phone
                                                     sunlight to grow.








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