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Written for grades 4-8, this role-play activity from EPA helps students understand how polluted waters affect the food chain and how fish become contaminated -- and thus unsafe to eat -- as pollutants (e.g., chemicals such as polychlorinated biphenyls or PCBs) accumulate up the food chain. In the...
Grade Level   4 5 6 7 8
Classroom Activities Curricula and Instruction
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