Curated OER
Ecosystems
A critical look into the structure and function of ecosystems is here for young learners as a series of lessons and worksheet activities. Topics covered include land-based and marine ecosystems, connections to the water cycle, food...
National Park Service
The Secret of Life
Dead trees provide nutrients for the soil, food for animals, protection and a home for organisms, a seed-bed for new trees, and a place for nitrogen-fixing bacteria to live. In the activity, pupils collect decaying logs, expose them to a...
Science Matters
Mighty Microorganisms
How can you tell if a microorganism is helpful or detrimental to an ecosystem? Learners inspect slides or pictures of microorganisms and record their observations to...
Prince William Network
The Incredible Journey
Divide your school gym into breeding grounds and non-breeding grounds so that your zoologists can play a game simulating the seasonal migration of shorebirds. Players pick one of the included game cards and follow its directions, which...
Science Matters
Lotusland
It's time for a field trip! Scholars take their new-found knowledge of adaptations and seed dispersal on a field trip to a local botanical garden. They gain an up-close look at how ecological interdependence works in a distinct...