Page 60 - Carvaan Science-a
P. 60

! Air is present everywhere.
                            ! We cannot see the air, but we can feel it when it blows.

                            ! All living things need air to breathe.
                            ! Air takes space and has weight.
                            ! Moving air is called wind.

                            ! When wind blows very fast, it is called a storm.





                      Check Yourself


            A.  Tick ( ) the correct option :                                                                 Critical Thinking

                  1.   We need _________________                     to breathe.

                       (a) food                          (b) air                          (c) water
                  2.   Can we see the air?
                       (a) Yes                           (b) No                           (c) Can't say

                  3.   We feel air, when it _________________                      .

                       (a) flows                         (b) freezes                      (c) blows
                  4.  When air blows slowly, it is called a _________________                            .

                       (a) breeze                        (b) storm                        (c) wind
                  5.  Very fast blowing air is called _________________                         .

                       (a) breeze                        (b) storm                        (c) wind
            B.  Fill in the blanks with the correct word :                                                    Problem Solving

                                         breathe,   weight,   air,   blows,   wind

                  1.   Air helps us to ______________________                         .
                  2.   Moving air is called ______________________                           .

                  3.   We feel air when it ______________________                           .
                  4.   Aeroplanes need ______________________                            to fly.

                  5.   Air has ______________________                       .
            C.  Write (T) for True and (F) for False statements :                                             Decision Making

                  1.   Moving air is called storm.                                             _____________
                  2.  Aeroplanes need water to fly.                                            _____________

                  3.  Air is needed for burning.                                       _____________
                  4.  All living things need air to breathe.                                   _____________


                                                                 60  Science-1
   55   56   57   58   59   60   61   62   63   64   65