They will explore the boiling point of water, the freezing point of water, and the ability of water to store heat. These activities can be done individually or as a set. Life on Earth is possible because of the unique properties of water. The abundance of liquid water makes life on Earth possible. Water has a high heat capacity.
Ocean water contains salts and minerals that make it different from fresh water.
Graphing information helps us to analyze and understand it. As a demonstration, use an overhead projector to record the data for the class. If sea water is unavailable, you can find salt water aquarium mix at any pet store that sells salt water fish. Alcohol may be used as a liquid in the experiment for comparison. Make sure that the alcohol is in a closed container and do not let it splash.