Investigation 2: Sediment Size and Fossil Formation


To learn more about sediments, visit the following web sites:

Sediment, USGS
View a sediment size chart.

Sedimentary Rock Classification, University of Oregon
Sedimentary Rock chart.


To learn more about sedimentary rocks, visit the following web sites:

Rocks and Layers, United States Geological Survey (USGS)
Learn how and why fossils form in sedimentary rocks. Also, explore the different types of sedimentary rocks and how to use the sequencing of rock layers to interpret Earth history.

Fossil Bearing Rocks, Kentucky Geological Survey
Visit this geological survey page to learn about a variety of fossil-bearing, sedimentary formations found in Kentucky.


To learn more about kinds of fossils, visit the following web sites:

Touring the Collections, PRI
Tour a fossil database.

IES Fossils Cover
AGI/It's About TIme
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AGI's professional development programs for teachers are supported by generous contributions from corporate contributors of theĀ American Geosciences Institute Foundation and theĀ American Association of Petroleum Geologists Foundation.