Nobody else but the rosebush knows How nice mud feels Between the toes. In a storm the wind talks with its mouth wide open. It yells around corners with its eyes shut. These are places where there are high levels of pollution. The hot spots have a direct relationship to the number of people living around the lakes.
Lake Superior is the least polluted, and Lake Ontario is the most polluted.
Students will be able to recognized that people use and pollute water. They will be able to identify the correlation between water use and water quality. Put 132 water drop disks into Lake Superior. Put the other 18 into Lake Ontario. These represent the relative amounts of water in each lake.