US Geological Survey
Lake Pontchartrain Basin Foundation: Ecosystems in Delicate Balance
Learning activities to investigate how organisms interact in a functioning ecosystem. Students will explore the role organisms play in food chains and preserving biodiversity in ecosystems. Lake Pontchartrain Basin ecosystem is featured...
BiologyWise
Biology Wise: Facts About Autotrophs and Heterotrophs
Explains what autotrophs and heterotrophs are, the several types of each, their roles in an ecosystem's food chains, and the differences between them.
ArtsNow
Arts Now Learning: Using Tableau and Role Drama to Examine the Ecosystem [Pdf]
In this lesson plan, 4th graders use tableaux to dramatize their roles in the food chain of an ecosystem. Next, they write in role arguing why they are important to the ecosystem. This is followed by a debate in the format of a Character...