Module 2: Stories of the Present (Stories of the Lithosphere):

Earth Science Essentials

Title: Braided river in Alaska

Why one place has great farmland and another an Emerald City—Gold, Pollution, and Farmland—Part 1

This unit examines the chemical differentiation of the earth and considers constraints of element migration. Individual lessons will open in a new page--simply close the page when done and return here.

10/27/2017--pictures and text copyright Russ Colson