Wild BC
Connecting Ecosystems & Climate
Collaborators sort a set of cards into biotic and abiotic categories. Then, as a class, they discuss their work and relate each of the abiotic components to climate change. Finally, they form a web of components by connecting those that...
Maryland Department of Natural Resources
Eyes on Dissolved Oxygen
Learn about the factors that affect the way oxygen dissolves in salt water with a chemistry lab. After studying the molecular structure of water, young scientists figure out how aeration, temperature, and organic waste affect...
Council for Economic Education
Econ Ed Link: Hawaiian Economics: Barter for Fish & Poi
In ancient Hawaii, chiefs managed the economy by creating a land division system, the Ahupua'a, which divided the islands into pie slice shapes. Each Ahupua'a covered the three main regions of the islands: the mountains, the valleys, and...
State Library of North Carolina
N Cpedia: Coal
Coal in North Carolina is limited to two belts of Triassic sediment: the sporadic Dan River belt and the larger Deep River belt, which runs along the Deep River in Lee, Moore, and Chatham Counties. Read on to learn about the uses and...