References

1. Presentation, "Sandwich Geology" Trisler et al., 2001, SECO Cincinnati.
2. Presentation, "Eating the Earth" Trisler et al., 2001, SECO Cincinnati.
3. "Science Is . . . A Resource Book for Fascinating Facts, Projects, and Activities." S. Bosak, Scholastic Canada, 1998, p.229.
4. "Magic School Bus: Inside the Earth." Joanne Cole, Teacher Created Materials, Inc., p.12.
5. "Physical Geology." Plummer, McGeary and Carlson, McGraw-Hill, 1999.
6. GEOEDGROUP- The Ohio State University
7. USGS website, http://pubs.usgs.gov/publications/text/inside.html
8. "The Best of Wonder Science: Elementary Activities: Fabricate Some Fabulous Fossils." (p. 319) Delmar Publishers, ITP, Cincinnati, p 531.
9. "Fossils, A Golden Guide." Frank Rhoads, H.S. Zim, and Paul R. Schaffer, St. Martin's Press, 2000.
10. Fossils of Ohio
11. "Rocks and Minerals: Make your own sandstone." Albert, Toni and Ling, George, 1994, Carson-Dellosa Publ, p. 40.
12. "Stories in Stone Formation of Sedimentary Rocks." Cuff. Kevin, 1995, Lawrence Hall of Science, University of California Berkeley, p. 65.
13. Kentucky Foundation Website, http://www.coaleducation.org/lessons/geology.html