Curated OER
Liquid Rainbow
Young scholars develop their own techniques for drawing a small sample of solutions into a straw. They hypothesize ways to increase the density of water, and discuss how salt-free rainwater tends to float on top of salty seawater.
Curated OER
Modeling Estuaries
Students create a model estuary. In this modeling estuaries lesson plan, students identify characteristics and mix water of varying densities. Students form a hypothesis, conduct an experiment, and analyze the results.
Curated OER
WONDERFUL, WATERFUL WETLANDS
Learners list characteristics of wetland and describe the functions of a wetland.
Curated OER
Snow on Sea Ice
High schoolers examine different samples of ice and predict the amount of snow that has fallen in a given year. Using a calculator, they graph the various thicknesses. They analyze the graphs to determine the relationship between the...