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Utah Education Network
Uen: The Great Rock Sort
Describe and sort rocks by their physical properties.
Science Struck
Science Struck: Types of Landforms
Describes different landform types and their features. includes many good quality photographs.
American Geosciences Institute
American Geosciences Institute: Rock Chart [Pdf]
A rock chart the describes the texture, appearance, characteristics, type, and where each is formed.
Science Struck
Science Struck: Guide to Mechanical Weathering and Its Major Types
Describes the different types of mechanical weathering and how each of them breaks down rocks.