Page 34 - York Global Science 6 - Physical Science
P. 34

4         Evaporation







                          Objectives




                  ➜ ➜ Describe the concepts of the boiling point of water, the freezing point of

                      water and the melting point of ice at room temperature.
                  ➜ ➜ Identify that liquids can change into gases through evaporation without
                      boiling through different factors that affect the rate of evaporation.





                      Vocabulary


                    • Boiling point               • Evaporation                • Particle

                    • Energy                      • Molecule                   • Surface area





                       Let’s Start



                    What happens when a substance evaporates?









































          34
   29   30   31   32   33   34   35   36   37   38   39