Module 2: Stories of the Present (How Do We Know?):

Earth Science Essentials

Title: Braided river in Alaska

How Do We Know? Exploring Places We Can't Go

This unit considers how we can study the temperature and composition of stars even though we can't go there. 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