Cooperative groups write letters to obtain information from organizations concerned with water issues to find out what organizations do to protect, supply, or educate people about water. Students participate in a simulation activity concerning the decision to dam a valley to develop a reservoir. They classify statements as facts or opinions. The class develops a list of advantages and disadvantages of dams. Each group learns about and reports on one source of pollution.
Students compare the effects of water pollution on celery stalks.
The class reads a play and then completes a chart that identifies various sources of pollution and their affect on living things. They identify some ways to filter water. Cooperative groups design filters to purify simulated water samples collected from fictitious parts of their community. They determine whether their filters adequately filtered the water samples. Students identify ways various pollutants can affect living things.