Crater Lake by Kristin Gates. John Hilman first named Crater Lake Deep Blue Lake This was changed to its current name in 1896 by John Sutton William Steel.
Atlas of Igneous Rocks. Part 1: Crystallinity Igneous rock range in crystallinity from entirely glass. Adjectives used to describe these states are shown.
Rocks and Minerals By: Johnny Book. Sedimentary rocks These rocks cover over 80% of Earth’s land area. Most of them are made from pieces of other rocks.
JSC SAFETY, HEALTH, & FIRE PREVENTION WEEK October 11-14, 2011 Sponsored by JSC Communications Committee.
Introduction to Landform Study Chapter 13. The Structure of the Earth Four Regions The Crust The Mantle The Outer Core The Inner Core.
