Sixth graders make a model of a watershed. In this geography instructional activity, 6th graders view a shaded relief map of California and locate landmarks. Students examine the San Francisco Bay Watershed by following the journey...

Students investigate the San Francisco Bay Estuarine Research Reserve and watershed. In this estuary and watershed lesson plan, students complete 4 activities to better understand estuarine systems. They include studying the San...

Students experiment with water density, temperature and salinity. In this water lesson, students observe how the coldest water sinks to the bottom of a test tube, and how saltwater sinks in comparison to freshwater.