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

Earth Science Essentials

How Do We Know? Discovering Things We Can't See

This unit considers how we can explore the Earth's deep interior, a place we can't see. Individual lessons will open in a new page--simply close the page when done and return here.

• Places we can't see--Earth's interior Lecture (5:52 min)


• Places we can't see--Earth's interior, interactive text


• How Do We Know--Evidence, Reasoning, Conclusions. interactive text.


• How Do We Know--Seismic Wave lab


• How Do We Know--Seismic Wave lab walk through

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