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Science Y1 – Managing materials – week 5



                                                        RUBBER
            Truth to Teach (Source)


            God has hidden useful materials in the earth.  He has allowed men to discover them and
            find  ways of harnessing their potential.

            Way to Work (Means)

           1.       Recap: So far we have been looking at different materials.
                    God has put these materials on the earth.   Some are easy to see and use, others

                    are more hidden - perhaps under the ground.  Sometimes man has to do things  to
                    the materials, to make them so that he can use them.
                             •  What materials have we looked at?
                             •  Where do they come from? (Where have they been hidden?) There
                                 are  many more. Today we are going to look at rubber.


           2.       Refer to a display of items made of rubber.  What is rubber like?  What might its
                    advantages be?  (elastic / stretches / bounces)
                    Blow up a balloon.  What does this tell us about rubber? (It can hold air.)  Pour

                    water into a hot water bottle - Rubber can hold water.
                   Have a child put on wellingtons and stand in water - Rubber keeps  water  out.


           3.       First part of the worksheet.


           4.       Does anyone know where rubber comes from?  Where has God hidden it?

                                                 Two types of rubber
                             Natural rubber                             Man-made rubber

                    From rubber tree                              From oil
                    Christopher Columbus saw people in            Today  more  man-made  is  used  than
                    Haiti playing with an extraordinary ball      natural rubber.
                   that bounced
                    Bark cut – white liquid (latex) collected

                    This material was called rubber because it can rub out pencil marks.


           5.       Second part of the worksheet.


           Learning for Life (Fulfilment)

           For the children to ‘discover’ more about rubber, learning where it comes from and

           appreciating its characteristics.




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