Students can play interactive games and learn nutrition facts.

Take this interactive, multiple-choice quiz over concepts in ecology, then review your score and any missed questions at the end.

Read 37 slides on energy flow and the nutrient cycle.

Slideshow that looks at energy flow in an ecosystem. Explains what an ecosystem is, how energy flows through it, the producers and consumers of energy, and food chains. Links to a video about plastic debris in the ocean.

This website describes trophic levels, transfer of energy between trophic levels, pyramids of ecology, and nutrient cycles within the environment.

Study the daily life of people during the Aztec Empire including food, clothing, housing, and education on this site.