Smithsonian Institution
Smithsonian Environmental Research Center: Forces of Change: Weaving the Web
The students will become the food web in this fun interactive classroom activity. Detailed instructions, background information, guiding questions, and activity worksheets are provided.
CK-12 Foundation
Ck 12: Biology: Trophic Levels
[Free Registration/Login may be required to access all resource tools.] Describes how to identify trophic levels in a food chain or food web.
Soft Schools
Soft Schools: Ecology Quiz
Take this interactive, multiple-choice quiz over concepts in ecology, then review your score and any missed questions at the end.
Science Education Resource Center at Carleton College
Serc: Mn Step: Rock Residents: What Lives Under a Rock?
For this activity, students first listen to a story about animals that live under rocks, then go on an exploratory nature walk to see what animals they can find, living in their own small habitats. They write about their discoveries in a...
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.