What are some events that all of us have had in our lives? Ask the class "What are some events that all of us have had in our lives?" Make a list of 5 or 6 things on the board. Let’s organize these!

Despite seeming like a relatively stable place, the Earth's surface has changed dramatically over the past 4.6 billion years. Mountains have been built and eroded, continents and oceans have moved ...

Fossils are the remains or traces left behind by life forms that existed long ago and are normally found in sedimentary rocks. They are usually very small, like micro shells or pollen, and sometimes ...

In the late 1700s, while inspecting a coal mine in southwest England, a young surveyor named William Smith noticed a surprising pattern: from one location to the next, rock layers (or "strata") were ...

Reston, VA – The U.S. Geological Survey (USGS) and the Association of American State Geologists (AASG) announced that they have developed an updated geologic time scale and color scheme for use in ...