This hands-on activity explores five different forms of erosion (chemical, water, wind, glacier and temperature). Students rotate through stations and model each type of erosion on rocks, soils and minerals. The students record their...

Identify the contents of a glacier like those found in Patagonia, construct a mini glacier model in class and compare and contrast the classroom model with Patagonian glaciers.

The NPS offers a good description of the three main types of valleys, lesson objectives, and modeling activities.