Climate and Temperature

Learn how Earth's climate effects soil types all over the planet.

Connecting With Nature


Conservation in Action

Join the conservation movement with U.S. Fish and Wildlife Service!

Dig Into Soil


Finding Slope


Geologic Age


Geologic Time Scale Analogy

Unraveling time and the Earth's biologic history are arguably geology's most important contributions to humanity. Yet it is very difficult for humans to appreciate time beyond that of one or two generations, much less hundreds, thousands, millions and billions of years. Perhaps we can only hope that students catch glimpses of our rich geologic heritage, particularly when most of our teaching is done in a classroom and not in a field setting. This exercise begins to make time more "three dimensional" and most importantly, students gain a better appreciation for geologic time and our Earth's history.

How Can You Test Your Soil?

As a citizen scientist, you can use a soil test kit to find out how much of each type of chemical is in your soil.

How Much Soil Is There?


Investigating Soil

Investigate different types of soil by using a core sample.


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