Daily Objectives

Department of Earth Science |Northeastern Illinois University

INTRODUCTION TO EARTH SCIENCE
ESCI 121
Section 05
Spring 2009
Daily Objectives #9 (February 17, 2009)                                                                                                         Dr. Sanders

By the end of today's class, you should be able to do the following:

w   Review: List and explain the mineral properties most commonly used to describe/identify minerals:

        ▫ hardness        ▫ luster            ▫ color                 ▫ cleavage         ▫ specific gravity (density)
        ▫ streak             ▫ taste             ▫ magnetism      ▫ reaction with acid (effervescence or odor)

w   Review: Define mineral cleavage, and show that you can study a hand sample of a mineral and describe its cleavage.

New this time

Rock Your State! In-class work

w   Working with 2-3 others, make a list of all the kinds of rocks and sediments found in the states you researched.

w   Create a master list (using sticky notes) of all the rocks/sediments represented for all the states in your group.

w   For each item on the list, categorize it as a sediment, igneous rock, sedimentary rock, or metamorphic rock.

w   Before you go on, write out on notebook-sized paper a statement of how each type of rock is formed.

w   Back to the poster sheets: For each type of rock (ig, sed, meta), subdivide the group into smaller classifications.

w   Put each kind of rock into its classification.

w   For sediments, organize the materials according to some logical principle. (What is it?)

Department of Earth Science | Northeastern Illinois University