Page 40 - Science class 4
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                    Potato,  rice,  bread,  banana
                    and grapes are rich sources of                      Carbohydrates are called the fuel of
                    carbohydrates.                                       body.


                                                                 Fats
                                                                 They  provide  us  more  energy  than

                                                                 carbohydrates. Extra fats can be stored in
                                                                 our body to be used later. Butter, ghee and

                                                                 nuts are rich sources of fats. A person, who
                                                                 does  a  lot  of  physical  work,  needs  more
                                Energy-giving food
                                                                 carbohydrates and fats.

                    Fats and carbohydrates are called energy-giving food                   .

                    Proteins

                    These are the nutrients that help to build the
                    body and make new cells. They also help in the

                    repair  of  worn  out  tissues.  Proteins  are
                    especially important for growing children. They

                    are called body-building food           . Cheese, pulses,
                    eggs, milk, meat and fish have lots of proteins.                           Body-building Food

                                                       Vitamins

                                                       These are needed in very small quantities by our

                                                       body. They keep us healthy by helping the body to
                                                       fight  against  diseases.  They  also  help  in  proper

                                                       working of our eyes, nerves, gums, skin etc. Vitamin
                                                       A keeps the eyes and skin healthy. Vitamin B is good

                                                       for muscles and nerves. Vitamin C makes strong

                    gums and heals our wounds fast. Vitamin D makes teeth and bones strong.
                    Fresh fruits, vegetables, fish and milk are rich in vitamins.


                    Minerals
                    These  are  also  needed  in  very  small

                    quantities to keep us fit and healthy. Calcium,

                    a  mineral,  is  used  for  building  bones  and
                    teeth. Milk and green leafy vegetables are                            Fruits              Vegetables

                    rich source of calcium. It is in lime also.                                Protective food


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