A tidbit of information stuck in my head from some previous learning experience is that solid H2O is less dense than liquid H2O. This defies the normal physical properties of most substances where the solid form is more dense than its corresponding liquid form. This is not only significant in the case of water it is critical for life in these colder parts. If ice were more dense than water, the ice would sink to the bottom of the lake or stream and would not only cause flooding but would eliminate the living space and climate of all the creatures still living in the water, including fish. One of the simple but profound evidences of the creation and a Creator.