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                 \ 10-Nov-2025  Bharat Arora   Proof-8                                     Reader’s Sign _______________________ Date __________

                                                  Fun                  Activity                      21 st
                                                                                                    Century
                                                                                                    Skills  #Creativity

                     Fill in the following words of measurement in the crossword grid horizontally, and
                     vertically at the appropriate places.

                                       horizontally                                  Vertically
                                 YARD            MILLENNIUM                  METRE              DECADE

                                MINUTE              GRAM                    GALLON            MILLIMETRE
                               SECOND               MONTH                   SqUARE                YEAR
                                 MASS             KILOMETRE                 CENTURY               LITRE

                             CENTIMETRE              HOUR                     INCH

                                                                                                   21 st
                       Project                                                                    Century   #Subject Enrichment
                                                                                                   Skills
                                            Water Conservation in everyday Life

                There are several activities for which we use a lot of water, such as bathing, washing clothes,
                cleaning utensils or vehicles, etc.
                    1.  Make a list of activities for which more than 5 L of water is required.

                    2.   You  must  have often noticed  water dripping  from a tap.  Can you
                        imagine how much water is wasted in an hour or a day?
                                                                                                                  1000
                          Take a measuring jug, put it under the tap for 1 minute or 5 minutes,                   750
                                                                                                          1000 mL
                        and estimate the amount of collected water. What should we do to                          500
                                                                                                                  250
                        stop such wastage? Discuss.

                       168       Mathematics 4

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