Science Education Resource Center at Carleton College
Serc: Investigating Lava Flows and Their Imapct on Shoreline Features
In this field geology activity, students will explore basaltic lava flows along the shoreline of Lake Superior, and begin to gain an understanding of the geologic story of Minnesota's North Shore. They will make observations about...
Australian Museum
Australian Museum: Igneous Rock Types
Learn about the different types of igneous rocks and how they are classified.
CK-12 Foundation
Ck 12: Earth Science: Igneous Rock Classification
[Free Registration/Login may be required to access all resource tools.] Presents the classifications of igneous rocks based on silica content.