Dichotomus igneous

Tuesday, August 23rd

Write in your Agenda: • 1 Metamorphic due TOMORROW

HAND IN TIER 2

Characteristics of a mineral Names of the three rocks Characteristics used to identify rocks Classification of rocks intrusive vs. extrusive Cooling rate Crystal size Coarse vs. fine grained

Are their any questions before Quiz?

Complete quiz in pencil Put in front bin when

finished Start planning for TIER 3

Project until everyone is finished

Quiz

Dichotomous Key

• A way to categorize things• Helps identify things • Two parts:1. Two part statements that

describe an organism2. Diagram showing the flow of the

rocks

Igneous Classwork Activity

Date: 8/23 Section: I Title: Dichotomous Key for

Igneous Page:

Table of Contents

Your mission….

Given the Dichotomous key, find out the name of each rock!

It’ssssssssssssssssssssssssss notes time!

Coffee Talk

Metamorphic=

Changed

1. Examples

2. How are Metamorphic Rocks

Formed? Formed under tremendous heat,

great pressure, and chemical reactions

Can cause new minerals Made at plate boundaries Metamorphism is changing one

type of rock into another as a result of heat pressure and/or chemical reaction.

a. Foliated – mineral crystals are

arranged in parallel layers or bands (ex. Schist, slate, and gneiss)

b. Nonfoliated – rocks are not banded and do not break into layers (ex. Marble and quartizite)

3. Types of Metamorphic Rocks

http://www.youtube.com/watch?v=rkGVE6wNAzo

A little Science Rap