Describes how and why sinkholes form, how to build a house and the effects on plumping in karst terrain, describes collapse sinkholes, and overall effects of sinkholes.

Geology and chemistry of acid rain effects. Lots of building and monument pictures showing acid rain damage. Be sure to follow the "next" link at bottom of each page.

A complete site that examines the geology of a lake, anatomy of a lake, seasons of a lake, and the life span of a lake.

This US Geological Survey site briefly discusses the basics of why pesticides are increasingly found in our ground water. Click Home to access the site in Spanish.

This U.S. Geological Survey website explains the desalinization method used by some communities to change sea water into drinking water. Click Home to access the site in Spanish.

This U.S. Geological Survey website offers one explanation of why the ocean is salty. Click Home to access the site in Spanish.

This U.S. Geological Survey website explains a variety of uses for saline water. Pie graphs and bar graphs are used to illustrate the various uses. Click Home to access the site in Spanish.

[Free Registration/Login may be required to access all resource tools.] Looks at how stratigraphy can be used to determine the relative ages of rocks, how unconformities occur, ways to match rock layers in different areas, and how...

Students investigate fossils found in the Decorah Shale found in the Mississippi River bluffs. They will determine the name and description of the most common fossils. They will also determine how old the fossils are and what the...

Provides detailed information on Mount Baker as well as information on glaciers, hydrology, lakes and drainages and other points of interest.

The Geology of the Genesee River Valley is the second volume of a series produced by 4th grade students at the Genesee Community Charter School while studying geology, physical fitness, and artist composition. The Students spent three...

This resource provides information about the magnitude scale, and allows users to try to figure out the difference between earthquake sizes.

Kids learn about the Earth science subject of glaciers including how they form, types of glaciers, geological features, how they flow, and interesting facts.

Earthquake damage can be intensified in areas that are subject to soil liquefaction. For example, in these areas, soil movement may cause foundations to collapse, while structures in nearby areas built on more stable soil or bedrock may...

A simulation that demonstrates divergent plate boundaries and seafloor spreading. A focus is on evidence of the Earth's normal and reversed polarity over geologic time in the rock record.

Borneo is the third largest island in the world. Borneo's vast biodiversity, natural resources, and geology are discussed. The history of indigenous peoples as well as the effects of colonization and overuse of natural resources are...

Geological eras showing the fossils found in each rock layer.

A chronicle of the eruption of Mount Pinatubo in the Philippines. Click on Fire and Mud Contents at the bottom of the first page to see the contents of this report.

This fundamentals of physical geography site provides a good overview of this early theory on the development landforms and the scientists that were involved in its conception.

You will find this list of questions interesting and amusing. "Things like, "Is salt water used for anything in the U.S.?," and How can we have a 100-year flood two years in a row?", are found on this this. Click Home to access the site...

Wells are extremely important to all societies. Find out how wells are dug today and peruse the list of the different types of wells and the methods used to dig them. Click Home to access the site in Spanish.

Here's a project for studying compression waves in different soil types. It uses a homemade wave tank for solids, with a frequency generator, amplifier, and loudspeaker as the vibration source. There are lots of interesting possibilities...

Earth's magnetic poles have reversed themselves throughout its long history. Find out what scientists know about these reversals. A geologic time line shows when the reversals occurred.

View several different surface features of Mars as taken by the Mars Global Surveyor. Explanation of each of the geologic features accompanies each photograph.