Page 26 - GK 3
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GRADE 3                                                                                                                 Start Up G.K


                                                                                                                                                      The telephone                         Wilbur and Orville
               16        Inventions and discoveries – Timeline                                                                                        was invented by                       Wright invented


                                                                                                                                                      Alexander Graham                      the first airplane.
            A timeline shows a picture of events as they happened in a certain                                                                        Bell.

            period of time. See this interesting timeline of inventions.                                                                                         1876                                        1903


            Abacus the first                    First telescope was                 The present

            known calculator was                invented by Hans                    form of sewing                                               1862                                    1879                                         1908
            invented. It is said                Lippershey. It was                  machine was                                                                                Thomas Alva Edison               Henry Ford invented
            to be invented by                   used to view the                    invented by Elias Howe.                        Louis Pasteur believed                      invented the light               the Model T car-the first

            the Chinese.                        skies.                              It is used for stitching                       that germs cause                            bulb which could                 affordable car used
                       2400 BC                               1608                   clothes.          1846                         diseases. He invented                                                        by people.

                                                                                                                                   the process of ‘pasteurization’             glow for over
                                       1593                                    1769                                                of milk.                                    1500 hours.

                First form of                        The steam engine
                thermometer was                      was invented by

                invented by Galileo                  Thomas Savery but                                                                Read the clues and search answers in the word grid.
                Galilee.                             later improved by                                                                1.   What was invented by Hans Lippershey to view the stars in
                                                     James Watt. It then                                                                    the sky?
                                                     became usable.                                                                   2.   Which calculating device was invented by the Chinese in 2400 BC?

                                                                                                                                      3.   Name the first affordable car introduced by Henry Ford and used
             The sound of Mr. Bell !                                                                                                  4.   Who improved the steam engine in 1769?
                                                                                                                                            by the people.




                  Alexander Graham Bell is most famous for his                                                                        5.   The                   machine invented by Elias Howe is used for

                  invention of the telephone. He was interested                                                                             stitching clothes.                              I   J   U   A   B   A   C   U    S   B   G
                  in the study of sound because his mother and                                                                        6.   What was invented by the Wright                  M   A   M   B   I   Y   E    S  U    U   E
                  wife both were deaf. He experimented to send                                                                              Brothers in 1903 which made                     O   M   E   I   M   O   D   E    L   T   R

                  voice signals down a telegraph wire. He had a                                                                             travelling easy and quick?                      C   E   R   N   E   T    I  B    T   E   M
                  famous assistant Thomas Watson and together                                                                         7.   According to Louis Pasteur                       A   S   A   S   A   H   L   E    R   L   S
                  they were able to come up with the telephone.                                                                             what was the main cause of                      S  W    S   T   S   E   O   A    Y   E   E

                  The first words spoken over the telephone were                                                                            diseases?                                       T   A   I   R   P   L   A   N    E   S   P
                  by Alexander Graham Bell on March 10, 1876. They were, “Mr.Watson, come                                             8.   Which word did Alexander                         L   T   E   E   O   L   P    S   S   C   I

                  here, I want to see you.”                                                                                                 Graham Bell introduce for                       E   T   O   O   E   O   E    I   T   O   A

                  Later, Graham Bell introduced the use of the word ‘hello’ when answering                                                  answering phone calls?                          O   A   Y   J   R   T   A   A    A   P   O
                  phone calls.                                                                                                                                                              S   E   W   I   N   G   R   M    T   E   S


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