Bellwork 1/7

• Answer in notes:
• Do all rocks look the same? What differences can you recall? (Use vocabulary we've learned) Hint: Properties of matter

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• Turn in mineral "one-pager" to On Time bin with your name on it

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Rocks and the Rock Cycle

Day 1

Homework (Due THURSDAY... after SARSSM training)

Sexual Assault Response Services of Southern Maine

• Rock Cycle
• Read Section 1
• Answer Questions 1, 2, 4, and 5 on pg. 39
• Igneous Rock
• Read Section 2
• Answer Questions 1, 2, 3, 5, and 7 on pg. 43
• Metamorphic Rock
• Read Section 3
• Answer Question 5 on pg. 48
• Sedimentary Rock
• Read Section 4
• Answer Questions 2 and 6 on pg. 55

Homework (ongoing)

• Collect rocks from home and organize as you progress through this unit

Agenda

• Share one-pagers (just a few)
• Introduction of Rock Cycle -Overview
• Read pgs. 36-39 of text
• Answer questions 1, 2, 4, & 5 on pg. 39

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• http://prezi.com/hzr8vo01q4ug/rock-cycle/ (start)

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• Work on homework assignment

STOP for Day 1

Bellwork 1/10/13

• Keep homework out at your desk (Chapter 2, Section 1-4 questions)

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• Fill out "Igneous Rock Table"
• Find it under 1/10/13 of 'Current Unit' on my website
• Use textbook and homework to complete the table

Today's plan

• Check homework
• http://prezi.com/hzr8vo01q4ug/rock-cycle/
• EXPLAIN- Presentation
• Definitions
• Foldable (follow directions on pg. 35 of text)

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• Concept Map (time depending)

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HOMEWORK: Complete Foldable

Types of Rock - Take out notebook/computer for some notes!

• Rock - A naturally occurring solid mixture of one or more minerals, or organic matter
• Rocks are classified by how they are formed, their composition, and texture
• Rocks change over time through the rock cycle

• Igneous rock - rock formed from magma.
• Magma can form:
• When rock is heated
• When pressure is released
• When rock changes composition
• Magma is a molten mixture of

many minerals or rock

http://www.fi.edu/fellows/payton/rocks/create/igneous.htm

• Granitic: light colored rocks that are rich in elements such as aluminum, potassium, silicon, and sodium
• Basaltic: dark colored rocks that are rich in iron and magnesium, poor in silicon
• Andesitic: mixture dark and light colored rocks... in between granitic and basaltic.

Granitic

Basaltic

Coarse-Grained

Fine-Grained

Granite

Gabbro

Basalt

Rhyolite

• Intrusive Igneous Rocks: magma pushes into surrounding rock below the Earth’s surface, cools slowly
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• Extrusive Rocks: forms when magma erupts onto the Earth’s surface (lava), cools quickly with very small or no crystals formed

http://www.windows.ucar.edu/tour/link=/earth/geology/ig_intrusive.html&edu=high&fr=t

Igneous rocks are the "original"rock.

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Most igneous rocks are under the surface of the Earth.

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What type of rock do you think is most prevalent ON Earth's surface?

- Think/Pair/Share

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WHY??

Sedimentary rocks make up 75% of the surface rocks on Earth.

Why?

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Sedimentary rocks often formed near ancient water sources (rivers, lakes, ocean...) Why?

http://www.fi.edu/fellows/payton/rocks/create/sediment.htm

• Sedimentary rock is formed by weathering, erosion, and deposition
• Law of Superposition - Sediments are deposited in layers, with the older ones on the bottom
• The layers become compacted and cemented (glued) together

• Sedimentary Rocks are formed at or near the Earth’s surface
• No heat or extreme pressure involved
• Layers of rock

Detrital – made of fragments of rock cemented together with calcite or quartz

Different sized grains = different types of detrital rocks...

Gravel - Congomerate

Sand - Sandstone

Silt - Siltstone

Clay - Shale

Chemical rock – minerals crystallize out of solution to become rock

Limestone is a sedimentary rock made of calcium carbonate (CaCO₃) - the mineral calcite. It most commonly forms in clear, warm, shallow marine waters.

-It is usually an organic sedimentary rock that forms from shell, coral, algal and fecal debris.

Organic rock – remains of plants and animals

Coal is an organic sedimentary rock that forms from the accumulation and preservation of plant materials, usually in a swamp environment. 

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Coal is a combustible rock and along with oil and natural gas it is one of the three most important fossil fuels. 

http://www.fi.edu/fellows/payton/rocks/create/metamorph.htm

• Metamorphic rock - Rock that changes with temperature and pressure, but remains solid
• Usually takes place deep in the Earth

• Foliated - contain aligned grains of flat minerals

Gneiss is foliated metamorphic rock that has a banded appearance and is made up of small mineral grains.

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It typically contains abundant quartz or feldspar minerals.

• Non-Foliated – mineral grains are not arranged in plains or bands

Marble is a non-foliated metamorphic rock that is produced from the metamorphism of limestone.

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It is composed primarily of calcite.

• Determine if the following rock samples are foliated or non-foliated:

Amphibolite

Quartzite

Phyllite

Foliated

• Metamorphic rock is generally formed deep within the Earth.
• It can be formed closer to the surface if it is near a magma chamber (extreme heat!)
• Metamorphic rock is not melted --- just deformed!

More Information---  The Rock Cycle

Good example of the rock cycle.

Bad example of the rock cycle.

WHY???

Foldable - pg 35

Complete for homework

STOP for Day 2

Bellwork 1/11/13

-Compare your foldable to your neighbor

...Fill in anything that you are missing!!

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-Open up computer to my website

1/11/13

• Review Activity - Grand Canyon (VIRTUAL FIELD TRIP!!)
• Grand Canyon (document)
• Videos

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• Vocabulary Concept Maps
• Relationships between central ideas and supporting details
• I will model an example for you first...

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***FINISH CONCEPT MAP FOR HOMEWORK

-Due Monday

STOP FOR DAY 3

Bellwork: Monday 1/14/13

• Categorize the vocabulary words into groups on your table; be ready to explain your organization
• Why did you group these words as you did?
• Are there any words you still have questions about?
• Keep Concept Map out for me to check!

Today:

• Review Grand Canyon Activity
• Review Concept Maps
• Introduce RAFT - DUE THURSDAY (this is your homework + study for Friday's test)

Bellwork: Tuesday 1/15/13

Slate is used as a building or landscape material. What makes slate so useful for these purposes? Be specific...

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Today:

• Rock cycle activity
• You will need to complete on your computer and then print or share!

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Homework: FINISH LAB, then work on RAFT

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Bellwork: Wednesday 1/16/13

• Share OR Turn in Choco Rock Lab

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• Compare and contrast granitic and basaltic rocks of similar size
• How are they similar/different?
• Close eyes and hold one type of rock in each hand
• Hypothesize which is basaltic vs. granitic based on heft (weight)

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Analyze this geologic profile

PLAN

Today:

• RAFT Due TOMORROW
• Rocks Study Guide

Extensions

• Modeling Rock - pg. 37 'Mini Lab' - Try at Home
• Create your own demo/model showing how sedimentary rocks form

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Bellwork: Thursday 1/17/13

• Take out RAFT materials

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• http://www.classzone.com/books/earth_science/terc/content/investigations/es0602/es0602page02.cfm

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Today:

• RAFT - due at end of class!
• Review
• Study Guide

Friday 1/18

TEST