Monday, August 20th

Please take out your Tier Igneous

CRCT Rocks are classified based

MAINLY on their: a.Color b.Texture c.Formationd.All Above

Week At a Glance Today: Igneous Notes, Explain Tier 2 Igneous Tuesday: Igneous Dichotomous Key Lab and Tier 2 Worktime Wednesday: Igneous/Rock classification quiz and begin Metamorphic notes Thursday: Tier 1 Metamorphic DUE, Computer LabFriday: Tier 2 Igneous DUE, Computer Lab

Corny Joke of the Day

What do planets read

Comet Books

What Did You Discover?Magma vs. lava

Cooling Rate/crystal size

Intrusive vs. Extrusive

Igneous Rocks Coffee Talk

I. FormationThey are

formed when hot, liquid rock, or magma,

cools and solidifies (Hardens)

II. ClassificationIgneous rocks are classified

according to their composition and texture.

4 basic types of texturesGlassy – black and sharpFine grained – interlocking piecesCoarse grained – consist of

interlocking mineral crystalsPorphyritic – made of large crystals

scattered on the back of small crystals.

Igneous RocksCoarse-Grained

Fine-Grained

Granite

Gabbro Basalt

Rhyolite

III. Magma vs. Lava

Magma – molten material below the earth’s surface.

Lava – molten material above the earth’s surface.

MUST KNOW INFO

IV. 2 Types

of Igneous Rocks

A. Intrusive Igneous Rocks: Magma pushes into

surrounding rock below the Earth’s surface

Cools slower Large Crystals Think: (INSIDE)

Examples:

Did you know?!?! Granite is the most abundant intrusive

rock!

B. Extrusive Rocks: forms when

magma erupts onto the Earth’s surface (lava),

cools quickly very small or no

crystals formed Think:

(EXTERIOR)

Example:

Basalt is the most common

EXTRUSIVE igneous rock!

Did you know?!?! Another name for

an Extrusive rock is a

VOLCANICrock

A Closer Look at an Igneous Rock

Obsidian is a dark-colored volcanic glass that forms from the very rapid cooling of molten rock material. It cools so rapidly that crystals do not form.

Is it fine-grained or coarse-grained?

Is this rock Intrusive or Extrusive?

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

Igneous Rock Video

Must write down TWO things you learned!!!!

Be prepared to share!

Rocks Rock!

Tier 2 Igneous

Due: Friday, August 24

Tier 2 ActivitiesCreate a song

Make a facebook page

*Goal: Demonstrate the knowledge between intrusive vs. extrusive Igneous Rocks

Must Include: Magma Vs. Lava Difference between Instrusive

and Extrusive (cooling rate, crystal size, location)

How Igneous Rocks are formed Be typed or written in black ink 5 or more COLORFUL pictures

Facebook Page

Use templates Provided

ORMake your own

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

A little Science Rap