Page 163 - Science Coursebook
P. 163

11.1  How we use energy







                Energy and development                              10
                As countries become richer, people                   9 8.7
                have more money to spend. They buy
                cars and use more fuel. They live in                 8
                bigger houses, use more clean water                  7
                and consume more goods.
                                                      energy         6
                All of these things require more      consumption    5
                supplies of energy. The bar chart shows  / tonnes of oil       4.1
                how much energy each person uses per  equivalent per   4             3.5

                year in different regions of the world.   person per year   3

                (These are average figures. Some                     2                     1.9
                people use more, some people use less.)                                           1.4
                                                                      1                                 0.8   0.6

                                                                     0
                                                                              Middle East
                   Question                                            USA  Europe       China        Africa  India
                   4   Study the bar chart. The                                          Latin America
                     average energy consumption          Annual energy consumption per person around the world.
                     per person around the world is
                     2.2 units. In which regions or
                     countries do people use more
                     than this?



                  Activity 11.1

                  Energy in China and the USA

                   The pie charts show how energy is used
                   in China and the USA.                       homes and

                   With a partner, discuss what these          offi  ces

                   charts tell you about the differences
                   between people’s lives in China and the   transport
                   USA. (You may be able to make use of
                   data in the other diagrams on
                   these pages.)
                                                            industry
                   Use the internet or other sources to
                   find out how energy use varies from

                   one country to another. Make a poster                    China                   USA

                   to present your findings to the class.


                  Summary
                  •  Many human activities require a supply of energy.
                  •  Energy consumption varies greatly around the world.



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