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Student              Corner

                         Visit different places and identify the different types of machines such
                         as a music system, watch, television, mobile phone, a refrigerator and
                         computer. Identify the machines that need electricity to work and that
                         don't.






                   Recap


                       Machines are man-made things.

                       We see many things around us. Some are natural and some are man-made.
                       Computer is a machine that can do many kinds of work.
                       Machines make our work easier.
                       Machines also save our time.






                                                        Exercise




                 A.  Tick ( ) the correct option.

                     1.  Which of the following is a machine?

                         a.                             b.                             c.







                     2.  Which of the following machine helps to solve sums?

                         a.                             b.                             c.







                     3.  Which of the following is not a man-made thing?

                         a.                             b.                             c.







                                                                                  Computer—A Wonderful Machine    11
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