Erik Kvale explains how ancient environments can be determined from geologic evidence.

During most of the convention, the IGS booth was filled with educators in search of earth science knowledge and resources.

Amzie Wenning used a sand box to demonstrate a classroom activity for teaching about meteor impact crators.

John Comer (right) explains one of the dozens of educational resources available at the booth.

Marni Dickson (center, in white shirt), assisted by Barb Hill (right), presented a demonstration of a classroom activity involving drilling a layered cake to show how geologists learn about what's below the surface of the earth.

Several educators took advantage of the opportunity to do a little cake drilling.

Teachers examine rock specimens during the Sedimentary Rocks, Fossils, and Paleogeography of Indiana workshop.

Ned Bleuer (facing the audience) shares his expertise with teachers during the Surface Terrain of Indiana workshop.

Todd Thompson teaches teachers about Indiana rocks and fossils during the Sedimentary Rocks, Fossils, and Paleogeography of Indiana workshop.

John Rupp (standing, left) and Brian Keith (standing, right) assist teachers during the Sedimentary Rocks, Fossils, and Paleogeography of Indiana workshop. Each teacher received a bucket full of rock and fossil specimens.