Rocks and Minerals
With this handout learn how igneous, metamorphic, and sedimentary rocks are classified. 3.72 MB PDF
In an exploration of magma behavior, students role-play minerals that are cooling at different rates, and then examine rock samples. For Grades 4-8.
In the early 1900's N. L. Bowen determined that different minerals crystallize at different temperatures during the cooling of magma. This chart demonstrates the reaction rates. Source: Trista L. Thornberry-Ehrlich, Colorado State University. [273 KB JPEG]
Through this webquest the student will discover how the many quarried stones at the National Mall not only provide the building blocks of each structure, but also strengthens the themes and ideas which are representative of the monuments and memorials as well.
Rock cycle diagram showing the associated geologic processes where the three types of rock are found: sedimentary, igneous, and metamorphic. 163 KB PDF
Learn about the oldest rocks found in the parks that range in age from 3 billion to 600 million years old.