Page 17 - York Global Science 6 - Physical Science
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Physical Science
Materials and Objectives
Their Properties By the end of this chapter, I will be able to:
➜ ➜ Describe and explain what happens to the mass and density of a substance
when it changes state.
➜ ➜ Describe what happens at the boiling point, melting point and freezing point
of water.
➜ ➜ Describe how climate scientists use what they know about water to find out
about changes to the Earth.
➜ ➜ Describe how liquids change into gases by evaporation.
➜ ➜ Describe physical and chemical changes.
➜ ➜ Describe the process of Brownian motion and explain how diffusion works in
liquids and gases.
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