Curated OER
Trophic Relationships, Cycling of Chemicals, Human Impact on Ecosystems and Conservation
Students explore how the energy flow through a system is related to trophic levels. They investigate how organisms affect the cycling of elements and water through the biosphere. Students participate in lab activities to observe ways...
Curated OER
Recyclers Revisited
Fifth graders observe their plant experiments that they started in a previous lesson and examine the role of decomposers in the nitrogen cycle. Two weeks after they set up a worm terrarium, they analyze any changes they observe, and...
Curated OER
Ecological Citizen
Students examine the interconnectedness of living and non-living things that constitute an ecosystem. They examine fallen trees,insects, living trees, leaves, food webs, and forests. They conduct various activities and write poems about...