Curated OER
Food Chains & Food Webs
Tenth graders examine how energy is lost through different trophic levels. In this trophism lesson students construct a food web and view a video.
Curated OER
Activity 1: Please Pass the Energy, Food Webs in the Upper Ocean and Hydrothermal Vent Communities
Students create food webs for two different ocean communities. They are given cards showing organisms from the surface of the ocean. They arrange them in order of who eats whom. After this class activity, students create a food web for...
Polar Trec
Bioaccumulation of Toxins
In 2015, Peter Cook found that sea lions with high levels of exposure to toxins suffered permanent brain damage if they survived at all. Scholars learn about the accumulation of toxins at various levels of the food chain. Using...