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Investigating Density Currents
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In this lab activity, learners explore how to initiate a density current. Learners measure six flasks with different concentrations of salt and water (colored blue).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-959.gif?itok=Sqm1vvuh)
Making Map Projections
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In this activity about cartography, learners work in teams to create two different map projections: a planar (or polar) and a cylindrical (or Mercator) projection.
Investigating Convection
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This experiment is designed to illustrate how fluids, including water, have the ability to flow.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-592.png?itok=t48lDyhK)
Ice on Mars
Source Institutions
In this activity, learners use sand and ice cubes to create a model of permafrost and the effects of the ice melting through the surface.