In this exercise, students investigate methods used by geologists studying active tectonics for determining ages in actual numbers of years. Introductory materials describe the three most-used techniques for dating...
The Yellowstone collection contains an assortment of digital resources relevant to the geology, geophysics, physiography, hydrology, biota and human impacts in Yellowstone National Park. Materials include a variety of...
Tornadoes can produce damage that ranges from broken tree limbs to a block of houses swept from their foundations. They can inflict utter devastation across a wide swath of land or, destroy one house and leave others on...
This site is designed to help instructors and students locate and use online databases and Geographic Information Systems (GIS) tools to research environmental risks in their own neighborhoods. Materials include a...
This activity introduces students to the idea that crystals 'grow' (crystallize or precipitate) and that minerals or rocks also form this way, providing a very general idea of the nature of magma (molten material that...
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