National Park Service
Living & Non-Living Interactions
What better way to learn about ecosystems than by getting outside and observing them first hand? Accompanying a field trip to a local park or outdoor space, this series of collaborative activities engages children in learning about the...
Curated OER
Food Chains & Food Webs
Tenth graders examine how energy is lost through different trophic levels. In this trophism lesson students construct a food web and view a video.