Page 15 - part 2ffinal_Version_Science_BB_Prim.4_(2nd_term)_2024-2025[1]_Neat
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Valleys and canyons formation





           Gravity pulls rainwater downhill forming

                           small streams.



                     These small streams join together
                      forming a bigger stream (river).



                       The water of the river flows fast across
                       the land and erodes a pathway through
                            the landscape forming a valley.



                                The fast flow of water erode a lot of
                             sediment and carry them away forming a
                                               canyon.







               Grand Canyon:


               -  The most famous canyon on Earth.
               -  It is located in USA.

               -  It is very large and steep canyon,
                   and it contains many layers of rocks.

               -  It contains a river in its bottom.












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