Curated OER
Lake Strata and Internal Waves
Use the classic density demonstration of placing a cola, a clear soda, and a diet soda into a tank of water. Then let learners attempt to pour some of the soda into layers in a clear container. The procedure explains a thermocline, and...
Curated OER
Density Dynamics
Students set up working models demonstrating lake turnover and the formation of deep water masses in the oceans.
Curated OER
Tides in the Hudson
Students view an illustration of the Hudson River watershed and identify the bodies of water shown. They discuss what happens when fresh and salt water mix. Students view a teacher demonstration of the stratification of fresh and salt...
Curated OER
Stacking Water
Young scholars experiment with different salinities of water using straws and different colors of water. They collect and interpret data from the experiment.
Curated OER
Stratification
Students study the process of stratification and seed dormancy. In this germination lesson students prepare a medium in which to grow seeds.
Curated OER
Thermal Stratification
Students use video, research and experiments to investigate and replicate thermal stratification in a lab. They prepare a report, poster or multimedia presentation showing the results of their work.
Curated OER
Lake Superior Ecology Unit
Sixth graders research Lake Superior and its ecosystem. Students investigate the lake's cycles of mixing and stratification and how these cycles affect the biology of the lake. This activity contains five days of activities.
Curated OER
Teaching about Diel Temperature Variation
Students explore temperature variation in lakes and deal with the data.