Page 29 - York Global Science 6 - Physical Science
P. 29

Physical Science




                       Let’s Learn


                    Hydrologists are scientists who study water on Earth. They look at how
                    water is used and where it is.

                    There is a lot of water on Earth and this water is always recycled.
                    Sometimes, the water is not in the right place at the right time for people to
                    use.

                    It is very important to understand the water cycle because it helps to know
                    how water moves on and around the Earth. The water cycle explains where
                    water goes, how it gets there, and what happens to it at different parts of

                    the cycle.






                                                                    condensation




                                 precipitation
                                                                                evaporation
















                                                              water cycle


                    Think!
                    Look at the picture of the water cycle and find the changes in state that

                    occur.
                    What makes these changes in state?

                    Explain how the water cycle works.














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