Page 91 - Science class 4
P. 91

Review and Assesseview and Assesseview and Assess
                                               R R

                                     Based on The Latest Pattern of New Education Policy 2020.
                                     Based on The Latest Pattern of New Education Policy 2020.
                                     Based on The Latest Pattern of New Education Policy 2020.
                                     Based on The Latest Pattern of New Education Policy 2020.
                                     Based on The Latest Pattern of New Education Policy 2020.
                                     Based on The Latest Pattern of New Education Policy 2020.
                                                    (LEARNING WITH PLAY :ALL THE WAY)Y :ALL THE WAY)Y :ALL THE WAY)Y :ALL THE WAY)Y :ALL THE WAY)Y :ALL THE WAY)
                                                    (LEARNING WITH PLA
                                                    (LEARNING WITH PLA(LEARNING WITH PLA
                                                    (LEARNING WITH PLA(LEARNING WITH PLA
                                     (Learning with Fun Containing all the Desired New Styled Questions)
                                     (Learning with Fun Containing all the Desired New Styled Questions)
                                     (Learning with Fun Containing all the Desired New Styled Questions)
                                     (Learning with Fun Containing all the Desired New Styled Questions)
                                     (Learning with Fun Containing all the Desired New Styled Questions)
                                     (Learning with Fun Containing all the Desired New Styled Questions)
                               You And Your Text
                               You And Your Text
                           Fill in the blanks with the correct word :
                                  Machines         force         more        liver       wind
                           1.  We can move an object by applying ______________                     .
                           2.  Friction will be ______________              on a rough surface.

                           3.  ______________            make our life easy.
                           4.  Scissors are an example of a ______________                .

                           5.  Windmills use ______________                energy.


                               Clear Approach
                               Clear Approach

                           Write ‘T’    for true and   for false statements : ‘F’

                           1.  Everything that is thrown up need not fall to the ground.
                           2.  Work will be done only if force is applied.

                           3.  All machines are levers.

                           4.  To draw water from the well, a pulley is used.
                           5.  Screws are simple machines.


                               Substituting Yourself
                               Substituting Yourself

                           Give one word for each one of the following :

                           1.  The force that resists the motion of objects                    ______________
                           2.  The force that  pulls objects downwards                         ______________

                           3.  An ordinary machine                                             ______________

                           4.  The main sources of all energy                                  ______________

                               Brush Up Your Learning
                               Brush Up Your Learning

                           A.  Answer the following questions :

                           1.  What is force? Why is it necessary?
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