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              We also measure the mass of one heavier object in terms of other lighter objects
              using a balance. Look at these pictures and fill in the boxes.

              (a)                                 (b)                              (c)










                    1 papaya weighs as                 6 books weigh as                  2 dolls weigh as much

                    much as  7  oranges.               much as          school           as       pencil boxes.

                                                       bag.
              All these objects such as a cup, spoon, pebbles, blocks, etc., used for measurement

              are called non-standard units of mass (weight).

              Standard Units of Weight (Mass)

              To measure the weight of objects accurately we use the standard units of weight.
              Gram

              The smaller unit of mass is gram. In short

              it is written as g. It is used to measure the

              weight of lighter objects such as an orange,
              a soap bar, coin, etc.                                   About 150 g       About 100 g       About 4 g

              Kilogram

              The standard unit of weight (mass) is

              kilogram. In short it is written as kg.

              It is used to measure the weight of heavy
              objects such as bags of vegetables, boxes

              of fruits, flour, rice, etc.                           About 1 kg       About 10 kg       About 25 kg

              You can see the weights of grams and kilograms used for measuring weight while
              buying vegetables and fruits.











              If we put 1000 grams together, we get 1 kilogram. So, 1000 g = 1 kg




              Mathematics-2                                                                                         159
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