Page 112 - ICSE Science 3 : E-book
P. 112

•  Solar roof panels contain many solar cells that absorb solar energy to produce
                       electricity.

                    •  Wet clothes are dried in the heat of the sun.

                    •  Food is cooked using the heat of the sun in a device called solar cooker.


                    •  Some food items like pickles and chips are made by drying them in the sun.

                    •  Solar energy is used in agriculture.

                    •  Grains are sun-dried to preserve them for a longer time                     Did You Know!
                       during their storage.                                                       The oldest solar
                                                                                                  power plant in the
                    •  Salt is made from seawater using solar energy. It is one                   world is located in
                       of the oldest uses of solar energy.                                            California.

                    •  Solar energy also helps to evaporate water that falls as

                       rain. It plays an important role in water cycle.















                             cooking             battery charging            heat home                heat water

                                                      Common uses of solar energy


                        TIME TO REVISE

                        Tick () the correct answer.

                        It is a natural source of energy present in abundance on earth.

                        (a) Mountain                                    (b) River

                        (c) The sun                                     (d) Fruit juice




                    Eff ect of Sun on Seasons


                    We know that the sun gives out sunlight and heat. It warms up the surface of the
                    earth and causes changes in weather. The more the sunlight received by a place,




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