martin van buren high school mr. cesaire earth science introduction to rocks
Post on 20-Dec-2015
216 views
TRANSCRIPT
![Page 1: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/1.jpg)
Martin Van Buren High School
Mr. Cesaire
Earth Science
Introduction to rocks
![Page 2: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/2.jpg)
Aim: How do we classify rocks?
Do now (5-7 minutes)• Define what is a rock. How are they formed in
the natural environment? What process can change a rock’s appearance or composition?
• HW: Read pages 28-29 Answer 18-25 due Wednesday.
• Mineral/Vocabulary quiz on Thursday• www.tinyurl.com/8msdk <~~ updated
![Page 3: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/3.jpg)
What is a rock?
• A rock can be defined as a natural piece of the solid Earth, usually composed of one or more minerals.
• Quite simply it’s a solid form of Earth materials: Minerals, bits of broken rock, and parts of once living organisms.– An example of once living organisms turned
to rock: Coal
![Page 4: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/4.jpg)
Origins of Rocks
Rock
MineralsEx: Quartz
GarnetPyroxene
Once Living OrganismsEx: Fossils
Plants
Bits of Small Rocks
![Page 5: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/5.jpg)
Limestone
Limestone (CaCO3) often formed near bodies
of water. Notice the fossils incorporated into the rock.
![Page 6: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/6.jpg)
Granite
Granite- an igneous rock that contains quartz, potassium feldspar, and biotite mica.Usually formed by cooling deep within Earth.
![Page 7: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/7.jpg)
Rock formation
oRocks have three main methods of formation:oCooling of molten materialoCompaction and cementation oHeat and pressure
o The methods if formation is similar to the formation of minerals
![Page 8: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/8.jpg)
Advancing lava
Lava is advancing down the road. Behind the lead edge the lava has cooled and solidified.
![Page 9: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/9.jpg)
Types of rocks
• Based on how they are formed, rocks are categorized into three categories:
• Igneous
• Sedimentary
• Metamorphic
Basalt- Igneous Conglomerate-Sedimentary
Gneiss-Metamorphic
![Page 10: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/10.jpg)
Let's Work Quickly!• Aim: What are the distinguishing features
of igneous rocks?
• Do Now: Define the following terms from the blue/orange text book
• Igneous Rock, mafic, felsic
HW #2 Read pages 54-57. Answer questions 1-10
Quiz next Monday based on pages 54-57
![Page 11: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/11.jpg)
Igneous Rocks
• Igneous rocks are molten mixture of minerals and dissolved gases that have cooled and crystallized.
• Molten material beneath the Earth’s surface is called magma.
• Molten material above the Earth’s surface is called lava.
![Page 12: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/12.jpg)
Igneous Rocks
• Igneous rocks are typically described by its texture.
• Texture refers to the minerals size, shape, and arrangement of crystals or grains in a rock.
• We will see examples of different textures in our hand specimens.
![Page 13: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/13.jpg)
• Open to page 121 to 122 of the text book and answer the following questions in your notes:
• 1. Describe the rate (how fast) magma cools. What type of rock is formed?
• 2. Describe the texture of these rocks. Why are the crystals larger?
• 3. Describe the rate (how fast) lava cools. What type of rock is formed?
• 4. Describe the texture of these rocks. Why are the crystals smaller
![Page 14: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/14.jpg)
Intrusive Rocks-Extrusive Rocks
• Igneous rocks that form due to slow cooling of magma are called Intrusive rocks. – Ex: Granite, Gabbro, Pegmatite
• Extrusive rocks cool rapidly above the Earth’s surface– Ex: Basalt, Rhyolite, Obsidian
![Page 15: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/15.jpg)
Obsidian
Obsidian- lava has cooled so quickly that crystals were not able to form. Obsidian has a glassy appearance.
![Page 16: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/16.jpg)
![Page 17: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/17.jpg)
In class activity
• You have a particular rock in front of you. Briefly describe the rock’s size, shape, color, grain size, mass (weight).
![Page 18: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/18.jpg)
• Aim: How do we distinguish the difference between igneous rocks?
• Do Now:
• HW: Read pages 54-57. Answer questions 1-10
• Quiz next Monday.
![Page 19: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/19.jpg)
• Let’s watch a quick video on igneous rocks.
![Page 20: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/20.jpg)
Basalt
Mafic or Felsic?
Texture?
Intrusive or extrusive?
![Page 21: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/21.jpg)
Granite
Mafic or Felsic?
Texture?
Intrusive or extrusive?
![Page 22: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/22.jpg)
Pumice
Mafic or Felsic?
Texture?
Intrusive or extrusive
![Page 23: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/23.jpg)
Scoria
Mafic or Felsic?
Texture?
Intrusive or extrusive
![Page 24: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/24.jpg)
Obsidian
Mafic or Felsic?
Texture?
Intrusive or extrusive
![Page 25: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/25.jpg)
![Page 26: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/26.jpg)
• Aim: How do we identify igneous rocks?
• Do Now: Take out a piece of loose leaf and prepare for your quiz on igneous rocks.
• HW#3 Use page 16 of your Earth Science Reference tables to fill out your crossword puzzle.
• Quiz next Monday on Sedimentary Rocks.
![Page 27: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/27.jpg)
QUIZ #2• 1.How are igneous rocks formed? Where can
formation take place?• 2. Explain the differences between magma and lava.
How does it relate to the grain size of an igneous rock?
• 3. Define texture (for igneous rocks). Why do some igneous rocks have larger grains (crystals) than others?
• 4. Compare and contrast mafic and felsic rocks
BONUS How can we tell the difference between intrusive and extrusive rocks?
![Page 28: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/28.jpg)
• We need to use our knowledge of igneous rock characteristics and page 6 of our reference tables to identify igneous rocks.
• Let’s watch a video on how to properly use the reference tables. Then we will identify several igneous rocks.
• Video available at www.tinyurl.com/8msdk
• www.myspace.com/mrcesaire
![Page 29: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/29.jpg)
• Aim: How can we describe the texture between igneous rocks?
• Do Now: Open to page 30 of the green review book and answer the following questions: #19, 21, 22, 23, 24, 25. It will be collected.
• HW: Read pages 59 to 62. This will be for your quiz next Monday
• Quiz next Monday on Sedimentary Rocks./Project soon• Latest videos and notes online:
www.tinyurl.com/8msdk, www.myspace.com/mrcesaire
![Page 30: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/30.jpg)
• Let’s watch a video the explains the different types of textures if igneous rocks.
• http://www.classzone.com/books/earth_science/terc/content/investigations/es0603/es0603page05.cfm?chapter_no=investigation
![Page 31: Martin Van Buren High School Mr. Cesaire Earth Science Introduction to rocks](https://reader030.vdocuments.us/reader030/viewer/2022032800/56649d4e5503460f94a2db0a/html5/thumbnails/31.jpg)
• Based on the texture and mineral composition, you have three families of igneous rocks.
• 1. Granite Family
• 2. Gabbro Family
• 3. Diorite Family
• Answer the following questions based on pages 123 to 124 of your text book.