Page 116 - ICSE Science 3 : E-book
P. 116

3.  The amount of sunlight received by each part of the earth causes
                              ____________.

                          4.  The resources from which we get energy are called ____________.

                          5. Use of ____________  energy sources can help avoid the use of

                              ____________ energy sources.


                    B.  Write (T) for true and (F) for false statements.

                          1.  Renewable energy sources are found in limited quantity.

                          2. Switch off  the lights and fans when not in use.

                          3.  Wind energy is obtained from the running water of streams
                              and rivers.


                          4.  The more the solar energy received by a place, the hotter it is.
                          5.  Grains are sun dried by farmers to preserve them for a longer time.


                    C.  Answer the following in one word.


                          1.  Energy received from the sun                                         ______________
                          2.  Energy sources that can be used again and again                      ______________


                          3.  Process of saving energy by reducing its use and
                              wastage                                                              ______________

                          4.  Energy obtained from the moving air                                  ______________

                          5.  Energy obtained from the running water                               ______________

                          6.  Energy sources that are found in limited quantity

                              and cannot be produced again                                         ______________


                    D.  Match the following.
                              Column A                                                            Column B

                          1. Solar energy                                                    (a) Coal

                          2. Hydroelectric energy                                            (b) Wind energy

                          3. Wind energy                                                     (c) Dam

                          4.  Renewable source of energy                                     (d)  Solar cooker

                          5.  Non-renewable source of energy                                 (e)  Windmill



                  102
   111   112   113   114   115   116   117   118   119   120   121