• On the Trail of a Glacier

    The earth has a cyclic pattern to climate over geological time oscillating between ice ages and temperate periods. Glaciers are a remnant of the last ice age and are responsible for transforming terrain. Here we look at glaciation and explain what is...
    By Dr Mike C July 12, 2011 

  • Where Does Our Water Come From?

    Water is absolutely essential to life from both a biological and physical standpoint- our bodies are mostly water, and the water vapor in our atmosphere helps to keep our planet livably warm. Learn where the earth's fresh water resides!
    By Sean Fears July 8, 2011 

  • Volcanic Eruptions and Types of Lava Flows

    There are many different types of lava flows, depending on the composition of the lava and the style of volcanic eruption. A guide to the most common types of lava flows and how to recognize them in the field.
    By Kim O'Neal July 8, 2011 

  • The City of Pompeii and the Volcanic Eruption of Mount Vesuvius

    Mount Vesuvius is a composite volcano famous for the volcanic eruption of 79 CE that devastated the city of Pompeii. Details regarding the eruption style of Mount Vesuvius and the damage to Pompeii as well as the city of Herculaneum to the north.
    By Kim O'Neal July 8, 2011 

  • Grand Canyon National Park, Arizona: Geology and History

    Grand Canyon National Park, Arizona is considered the world's greatest natural wonder. A look at how the Grand Canyon was formed and the culture and history surrounding the Grand Canyon.
    By Kim O'Neal July 8, 2011 

  • Exploring Plate Tectonics and Geologic Rock Formations

    An introduction to how plate tectonics work, the three different forms of plate tectonics- divergent boundary, convergent boundary, and transform boundary, and the rock formations that occur as a result of plate tectonics- including volcanoes, earthquakes...
    By Kim O'Neal July 8, 2011 

  • Classifying the Three Types of Rocks: Igneous, Sedimentary, and Metamorphic Rocks

    A simple guide to determining the three types of rocks with examples of each. Tell the difference between igneous rocks, sedimentary rocks, and metamorphic rocks in the field.
    By Kim O'Neal July 8, 2011 

  • Classifying the Three Main Types of Volcanoes

    Learn about the three most common types of volcanoes: shield volcano, cinder cone and composite volcanoes. Exploring and classify the world's most famous volcanoes, based on shape and style of volcanic eruptions, including Mauna Loa, Mt. St. Helens...
    By Kim O'Neal July 8, 2011 

  • Learn How a River System Forms

    Ever wonder how a mighty river came into being and where and what its original source is? A river system entails a whole lot more than just the river itself and we will discuss how it forms, what it does for the surrounding landscape, and just how...
    By Daniel P. McGoldrick June 30, 2011 

  • How The Niagara Gorge Formed

    The entire Great Lakes Basin and the Niagara River are part of the Ice Age. This “fossil water” is less than one percent renewed water on an annual basis; the rest is leftover from the ice sheets that constructed the Great Lakes. How was...
    By Vicki Perry June 29, 2011 
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