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...
Curated OER
Testing Water for Hardness Using Soap Bubbles K-12 Experiments & Background Information
Students examine water and what causes it to become hard. In this water lesson students use the soap test and determine the mineral content and hardness of a sample of water.
Curated OER
George Washington & Civic Virtue: The Necessary Elements of the Republic
Students examine the character of George Washington. In this George Washington lesson, students read "Rules of Civility and Decent Behavior," Washington's First Inaugural Address, and his Farewell Address. Students use the included...
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 dissolved...