Curated OER
Toxicants and California Blackworms
Students determine the normal behavior of California blackworms. They determine how various concentrations of assigned toxicants affect the worm's behavior. Students are introduced to testing of potential toxicants, an important...
Curated OER
Acute Toxicity: LD50 by the Numbers
High schoolers observe brine shrimp as they are affected by household cleaners, develop observation scale, collect and analyze data, and discuss how household products and pesticides negatively impact environment.
Curated OER
Science: Testing Water for Toxicity
Students investigate the potential toxicity of water samples using California blackworms to test water quality. They observe the worms' behaviors in different water samples and determine which sample has the highest toxicity. At the...
Curated OER
Fertilizers, Pesticides and Human Health
High schoolers define several vocabulary terms related to chemicals and toxicology. Students calculate chemical concentrations in water and explain the toxicological principles that govern safety of substances. High schoolers conduct an...
Curated OER
Chemical Engineer
Students identify toxic household products. In this ecology lesson, students research on the health effects, rating and disposal of these products. They rank them based on the danger they pose.
Curated OER
LD50 of NaCl to Gammarus spp.
Young scholars learn the meaning of LD50 through lecture and discussion. Through experiment, students graph and calculate the LD50 of salt on fresh water amphipods. Young scholars compare results of the experiment with pesticides and...
Curated OER
And Justice for All?
Students explore the history of the environmental justice movement. They examine how discrimination promotes environmental illness in low income communities. Students explain why minority and low income groups have less economic and...