In the past caves have been used for shelter, for religious purposes, and for burial sites. They were even used for food storage before refrigeration, because they are cool and have constant high humidity. Get ready for an adventure as...

Students will work at a variety of hands-on learning stations to increase their knowledge of SE MN geology including rock layers, fossils and sink holes. They will also learn how Karst Geology impacts our water quality. Students will...

Facts and resources for kids regarding the Cave of the Winds.

This video segment adapted from NOVA chronicles the discoveries that led to a radical new theory in which living organisms, not just geological processes, play an active role in cave formation. [5:42]

The Saudi Geological Society sponsors this site devoted to world desert cave exploration and geology. Includes a picture gallery, reports, bibliography, and related resources.

[Free Registration/Login Required] This flipchart asks students to label diagrams showing the stages of cave formation.

Labeled diagram of cave geology.

This project shows you how to build a simple model system to simulate underground water flow. Underground water flow is important for understanding replenishment of underground aquifers, migration of underground contaminant plumes, and...

Explore Florida's springs, some of the world's largest freshwater springs. Here is a well-done site that includes information about threats to these unique springs, natural and cultural history, Florida wildlife, underwater cave systems,...

Excellent site to discover the National Parks from the convenience of your computer. Click on each park for a virtual tour, many in 3D, many offering historic photos. Dig deep into our national geologic story.

Site from the U.S. Geological Survey provides a brief list of volcano terminology including descriptions as well as links to major menus.

Students learn the importance of protecting pictographs as part of their geologic heritage by making their own paint using natural ingredients to create art.

Site delves into magma, lava and lava flows. Provides numerous links for additional references.

What is the highest elevation on earth? How about the driest place on earth? Do you know where the greatest earthquake took place? Let Extreme Science take you to these places and other extreme places around the world.

Located in a strange lunar landscape of great geological interest, this site has one of the most important groupings of prehistoric cave art in the world. More than 15,000 drawings and engravings record the climatic changes, the animal...