Curated OER
Trophic Pyramids and Levels
The bulk of this lesson involves the construction of both an aquatic and a terrestrial ecosystem in which to observe trophic relationships. Detailed directions are provided, as well as discussion questions, and assessment activities....
Curated OER
Ecological Relationships
Middle schoolers identify ecological elements and their factors on species, populations and food webs. They analyze ecosystems for these elements and research how these factors influence species survival rate. Predictions on conditions...
Curated OER
Web of Life - Ecosystem
Third graders play the roles of various organisms in an ecosystem (focusing on insects) and pass yarn or string around to other organisms from largest animals to the smallest. The end product is a web which shows how all of these animals...