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    Hello, children!

                                  Can you guess who I am?

                                  I am your best friend!

                                  I am a computer!

                                NATURAL AND HUMAN-MADE THINGS

                      Hey, friends!

                      You see a lot of things around you. They are either natural or human-made.
                      A cat and an apple are examples of natural things, whereas machines are

                      human-made things, such as a car and a fan.

                            Natural things                                         Human-made things

                      MACHINES

                      Machines  help us do different kinds  of work. They help us do  our chores
                      efficiently and quickly, so they save our valuable time.

                                                     Aeroplane                                  Refrigerator

                       8    Computer Science-I

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