Curated OER
Sink or Float?
Students analyze the relationship between density, buoyancy, and salinity. In this chemical properties instructional activity, students read a background activity for the instructional activity and experiments to the topics. Students...
Curated OER
Aquatic Organisms and Their Habitats
Middle schoolers investigate the presence of specific organisms in a freshwater habitat to determine the quality of that habitat. They conduct a field study and distinguish and classify organisms found during the field study.
Curated OER
Got Water?
Students determine that delivering clean, fresh water to citizens around the world involves and affects politics, economics, international relations, and technology. They brainstorm a list of factors that might affect their town's...