The fact that water ice is lighter than liquid water has key implications for Earth. Have them think about the implications this has for ocean life and life in our lakes and rivers. Another interesting property to consider is that when ice is formed it gives off heat. Use an overhead projector to record data for the class. In this procedure, you will examine water's ability to store heat.
Water has a higher heat capacity than almost any other liquid.
This means that it takes a lot of heat to change water's temperature significantly. We can measure and compare the heat capacities of water and air. Activity Fill one flask with water and leave one flask empty. This flask is filled with air. Insert thermometers through rubber stoppers and cap the flasks.