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This Daphnia Bioassay LD50 lesson plan also includes:
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De-icing materials may have a harmful effect on our environment; have your class perform an experiment to test the nature of these effects. Scholars monitor the survival rate of a sample of daphnia as the concentration of a de-icing solution increases. They then analyze their results to determine a reasonable solution.
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NGSS:
Adaptable
Concepts
Additional Tags
Instructional Ideas
- Have each group test a different substance typically used as a de-icer
- Ask classes to write a letter to city officials outlining the lab results
Classroom Considerations
- Requires advance preparation of at least one week
Pros
- Resources come in an editable version
- Connects chemistry to a relevant problem
Cons
- None