SlideShare une entreprise Scribd logo
1  sur  16
S6E5. Obtain, evaluate, and communicate information to show how Earth’s surface is formed.S6E5. Obtain, evaluate, and communicate information to show how Earth’s surface is formed.
c. Construct an explanation of howc. Construct an explanation of how
to classify rocks by their formationto classify rocks by their formation
Objective: Students will completeObjective: Students will complete
the graphic organizer aboutthe graphic organizer about
formation of igneous rocksformation of igneous rocks
Directions: Read each slide thenDirections: Read each slide then
complete the graphic organizer.complete the graphic organizer.
Rock Classification
Rocks are divided into three main classes
based on how they form:
1. Igneous
2. Sedimentary
3. Metamorphic
Each type of rock can be further
classified based on:
 Composition and texture
Composition
 The chemical make up of the rock or
what it is made of.
 This can be minerals or other
materials: shells, clay, plants,
sand, pebbles
Texture/Grains
 Determined by the grains size, shape
and position.
 Igneous can be fine or coarse grain
 Sedimentary can be characterized by
observing lithified (cemented) inorganic
grains, minerals, organic material, or
fossil fragments. The wide range of
textures common in sedimentary rocks is
separated into clastic, chemical, and
bioclastic (biochemical) groups.
Texture/Grains
Metamorphic textures consist of
two main types: foliated and
non-foliated textures.
Texture can reveal the
process that formed the rock.
Igneous RocksIgneous Rocks
What are they?What are they?
 Rock made from cooledRock made from cooled
–LAVA, above ground orLAVA, above ground or
–MAGMA, below groundMAGMA, below ground ..
ClassificationClassification
They are classifiedThey are classified
in 3 ways:in 3 ways:
1.1.Texture – Grain/Texture – Grain/
mineralsminerals
2.2.Origin - where formedOrigin - where formed
3.3.Mineral Composition –Mineral Composition –
made frommade from
Grain SizeGrain Size Have….Have….
SPECIALSPECIAL
NAMESNAMES
Texture/GrainTexture/Grain
 CoarseCoarse Grained = large grains, cooledGrained = large grains, cooled slowlyslowly
Think about it…. If it cools over a long time – the grains have time to get big!Think about it…. If it cools over a long time – the grains have time to get big! 
Most abundant intrusive rock isMost abundant intrusive rock is GRANITEGRANITE
 FineFine Grained = small grains, cooledGrained = small grains, cooled fastfast
Think about it… If it cools over a short time – the grains don’t have time to get big!Think about it… If it cools over a short time – the grains don’t have time to get big!
Example:Example: BasaltBasalt
Igneous Rock Formation-OriginIgneous Rock Formation-Origin
 ExtrusiveExtrusive – formed ABOVE– formed ABOVE
GROUND. It coolsGROUND. It cools fastfast so it hasso it has
smallsmall grains.grains.
 IntrusiveIntrusive – formed– formed
UNDERGROUND. It coolsUNDERGROUND. It cools slowlyslowly soso
it will haveit will have largelarge grains.grains.
Laccolith
Examples of each type of ROCK Fine
Grained
Basalt = Extrusive Igneous rock
Course Grained
Granite = Intrusive Igneous rock
Mineral CompositionMineral Composition
 How much silica is in the magma/lava?How much silica is in the magma/lava?
–Low silica content = dark colored =
MaficMafic
– HighHigh silica content =silica content = lightlight colored =colored =
Felsic
High Silica Content Low Silica Content
Felsic Igneous Rock Mafic Igneous Rock
Lighter
Darker
Big Crystals Small or No Crystals
Draw pictures of the different types of Igneous Rocks!
Label the igneous rockLabel the igneous rock
formationformation
Ticket out: CHOOSE ONLYTicket out: CHOOSE ONLY
ONEONE
 What makes up the grains in
an igneous rock?
Illustrate grains of an igneous
rock and explain why this
happens
Compare and contrast
intrusive and extrusive igneous

Contenu connexe

Tendances

Geography - rock formation rock cycle - GCSE
Geography - rock formation rock cycle - GCSE Geography - rock formation rock cycle - GCSE
Geography - rock formation rock cycle - GCSE
ajpittman
 
Lecture8 rocks
Lecture8 rocksLecture8 rocks
Lecture8 rocks
airporte
 
Chapter 4! Igneous Rocks
Chapter 4! Igneous RocksChapter 4! Igneous Rocks
Chapter 4! Igneous Rocks
Leslie Mira
 
Igneous Rocks
Igneous RocksIgneous Rocks
Igneous Rocks
tcooper66
 
Rocks and the rock cycle
Rocks and the rock cycleRocks and the rock cycle
Rocks and the rock cycle
mrcoyleteach
 
Igneous, Sedimentary, and Metamorphic Rocks
Igneous, Sedimentary, and Metamorphic RocksIgneous, Sedimentary, and Metamorphic Rocks
Igneous, Sedimentary, and Metamorphic Rocks
phspsquires
 

Tendances (20)

Geography - rock formation rock cycle - GCSE
Geography - rock formation rock cycle - GCSE Geography - rock formation rock cycle - GCSE
Geography - rock formation rock cycle - GCSE
 
Rocks And The Rock Cycle
Rocks And  The  Rock  CycleRocks And  The  Rock  Cycle
Rocks And The Rock Cycle
 
Rocks - Igneous
Rocks - IgneousRocks - Igneous
Rocks - Igneous
 
Three Types of Rocks
Three Types of RocksThree Types of Rocks
Three Types of Rocks
 
Lecture8 rocks
Lecture8 rocksLecture8 rocks
Lecture8 rocks
 
The earth’s lithosphere
The earth’s lithosphereThe earth’s lithosphere
The earth’s lithosphere
 
Igneous rocks
Igneous rocksIgneous rocks
Igneous rocks
 
263027686274175
263027686274175263027686274175
263027686274175
 
Chapter 4! Igneous Rocks
Chapter 4! Igneous RocksChapter 4! Igneous Rocks
Chapter 4! Igneous Rocks
 
Igneous rocks
Igneous rocksIgneous rocks
Igneous rocks
 
The three main categories of rocks
The three main categories of rocksThe three main categories of rocks
The three main categories of rocks
 
Rocks
RocksRocks
Rocks
 
Igneous Rocks
Igneous RocksIgneous Rocks
Igneous Rocks
 
Rocks and the rock cycle
Rocks and the rock cycleRocks and the rock cycle
Rocks and the rock cycle
 
Igneous rocks 2011acloutier copyright
Igneous  rocks 2011acloutier copyrightIgneous  rocks 2011acloutier copyright
Igneous rocks 2011acloutier copyright
 
Igneous, Sedimentary, and Metamorphic Rocks
Igneous, Sedimentary, and Metamorphic RocksIgneous, Sedimentary, and Metamorphic Rocks
Igneous, Sedimentary, and Metamorphic Rocks
 
The Rock and its types.
The Rock and its types.The Rock and its types.
The Rock and its types.
 
Kinds of rocks
Kinds of rocksKinds of rocks
Kinds of rocks
 
II.A Minerals and Rocks
II.A Minerals and RocksII.A Minerals and Rocks
II.A Minerals and Rocks
 
Igneous rocks
Igneous rocksIgneous rocks
Igneous rocks
 

En vedette

igneous rocks formation and their classification
igneous rocks formation and their classificationigneous rocks formation and their classification
igneous rocks formation and their classification
Mazhar Ali
 
5.6 alternative resources
5.6 alternative resources5.6 alternative resources
5.6 alternative resources
mojavehack
 
Chapter 4 Rocks
Chapter 4 RocksChapter 4 Rocks
Chapter 4 Rocks
nilsona
 
Minerals and rocks for presentations
Minerals and rocks for presentationsMinerals and rocks for presentations
Minerals and rocks for presentations
Belal El Nagar
 
Effects of earthquake and tsunami
Effects of earthquake and    tsunamiEffects of earthquake and    tsunami
Effects of earthquake and tsunami
Sandeep Sannidhi
 
5.1 the rock cycle
5.1 the rock cycle5.1 the rock cycle
5.1 the rock cycle
mojavehack
 
Igneous And Magma
Igneous And MagmaIgneous And Magma
Igneous And Magma
Ryan Cataga
 
5.4 metamorphic rock
5.4 metamorphic rock5.4 metamorphic rock
5.4 metamorphic rock
mojavehack
 
Geology lecture 20
Geology lecture 20Geology lecture 20
Geology lecture 20
Lauren Adams
 

En vedette (20)

Sedimentary rocks
Sedimentary rocksSedimentary rocks
Sedimentary rocks
 
igneous rocks formation and their classification
igneous rocks formation and their classificationigneous rocks formation and their classification
igneous rocks formation and their classification
 
SEDIMENTARY ROCK (teach)
SEDIMENTARY ROCK  (teach)SEDIMENTARY ROCK  (teach)
SEDIMENTARY ROCK (teach)
 
Igneous rocks
Igneous rocksIgneous rocks
Igneous rocks
 
Sedimentary Rocks
Sedimentary RocksSedimentary Rocks
Sedimentary Rocks
 
Unit 3 rock slides
Unit 3 rock slidesUnit 3 rock slides
Unit 3 rock slides
 
5.6 alternative resources
5.6 alternative resources5.6 alternative resources
5.6 alternative resources
 
Chapter 4 Rocks
Chapter 4 RocksChapter 4 Rocks
Chapter 4 Rocks
 
Minerals and rocks for presentations
Minerals and rocks for presentationsMinerals and rocks for presentations
Minerals and rocks for presentations
 
Earthquake causes and safety measurements
Earthquake causes and safety measurementsEarthquake causes and safety measurements
Earthquake causes and safety measurements
 
Vishnu clastic rock ppt
Vishnu clastic rock pptVishnu clastic rock ppt
Vishnu clastic rock ppt
 
Effects of earthquake and tsunami
Effects of earthquake and    tsunamiEffects of earthquake and    tsunami
Effects of earthquake and tsunami
 
5.1 the rock cycle
5.1 the rock cycle5.1 the rock cycle
5.1 the rock cycle
 
Sedimentary rocks slideshare
Sedimentary rocks  slideshareSedimentary rocks  slideshare
Sedimentary rocks slideshare
 
Glaciers and its types
Glaciers and its types Glaciers and its types
Glaciers and its types
 
Igneous And Magma
Igneous And MagmaIgneous And Magma
Igneous And Magma
 
Classification of Mudstone
Classification of MudstoneClassification of Mudstone
Classification of Mudstone
 
5.4 metamorphic rock
5.4 metamorphic rock5.4 metamorphic rock
5.4 metamorphic rock
 
Metamorphic rocks
Metamorphic rocksMetamorphic rocks
Metamorphic rocks
 
Geology lecture 20
Geology lecture 20Geology lecture 20
Geology lecture 20
 

Similaire à Chapter 4 igneous rocks formation 20122013

Igneous rocks armetta
Igneous rocks  armettaIgneous rocks  armetta
Igneous rocks armetta
marmetta
 
Geosphere.rocks.minerals
Geosphere.rocks.mineralsGeosphere.rocks.minerals
Geosphere.rocks.minerals
Mrs. Henley
 

Similaire à Chapter 4 igneous rocks formation 20122013 (20)

Classification of Igneous rocks
Classification of Igneous rocksClassification of Igneous rocks
Classification of Igneous rocks
 
Igneous rock textures
Igneous rock texturesIgneous rock textures
Igneous rock textures
 
Types of Rocks
Types of Rocks Types of Rocks
Types of Rocks
 
Classifying Rocks
Classifying RocksClassifying Rocks
Classifying Rocks
 
Week 4-Rocks.pptx
Week 4-Rocks.pptxWeek 4-Rocks.pptx
Week 4-Rocks.pptx
 
Saikat Nandy , Soil formation & structure
Saikat Nandy , Soil formation & structure Saikat Nandy , Soil formation & structure
Saikat Nandy , Soil formation & structure
 
Rocks
RocksRocks
Rocks
 
Engineering Soil Mechanics (Fawzan Fahry)
Engineering Soil Mechanics  (Fawzan Fahry)Engineering Soil Mechanics  (Fawzan Fahry)
Engineering Soil Mechanics (Fawzan Fahry)
 
Rocks
Rocks Rocks
Rocks
 
Texture of Igneous Rock.pptx
Texture of Igneous Rock.pptxTexture of Igneous Rock.pptx
Texture of Igneous Rock.pptx
 
Rock cycle
Rock cycleRock cycle
Rock cycle
 
Rocks - Igneous
Rocks - IgneousRocks - Igneous
Rocks - Igneous
 
Petrology
PetrologyPetrology
Petrology
 
Fossils to sedimentary rock
Fossils to sedimentary rock Fossils to sedimentary rock
Fossils to sedimentary rock
 
Rocks sky
Rocks  skyRocks  sky
Rocks sky
 
Rocks - Igneous
Rocks - IgneousRocks - Igneous
Rocks - Igneous
 
Britney Desilva year 8 science
Britney Desilva year 8 scienceBritney Desilva year 8 science
Britney Desilva year 8 science
 
Igneous rocks armetta
Igneous rocks  armettaIgneous rocks  armetta
Igneous rocks armetta
 
Geosphere.rocks.minerals
Geosphere.rocks.mineralsGeosphere.rocks.minerals
Geosphere.rocks.minerals
 
4.petrology.pptx
4.petrology.pptx4.petrology.pptx
4.petrology.pptx
 

Plus de aalleyne

2018 2019 geocentric theory model vs heliocentric theory model revised
2018 2019 geocentric theory model vs heliocentric theory model revised2018 2019 geocentric theory model vs heliocentric theory model revised
2018 2019 geocentric theory model vs heliocentric theory model revised
aalleyne
 
8 12 2015 minerals defined & properties revised
8 12 2015 minerals defined & properties revised8 12 2015 minerals defined & properties revised
8 12 2015 minerals defined & properties revised
aalleyne
 

Plus de aalleyne (20)

2018 2019 geocentric theory model vs heliocentric theory model revised
2018 2019 geocentric theory model vs heliocentric theory model revised2018 2019 geocentric theory model vs heliocentric theory model revised
2018 2019 geocentric theory model vs heliocentric theory model revised
 
Water in the earths processes vocabulary2
Water in the earths processes vocabulary2Water in the earths processes vocabulary2
Water in the earths processes vocabulary2
 
Distribution of earth's water location water_on_the_earth
Distribution of earth's water  location water_on_the_earthDistribution of earth's water  location water_on_the_earth
Distribution of earth's water location water_on_the_earth
 
The ocean's composition & location
The ocean's composition & locationThe ocean's composition & location
The ocean's composition & location
 
Earth’s layers
Earth’s layersEarth’s layers
Earth’s layers
 
11 29 2017 the ground beneath my feet save soil
11 29 2017  the ground beneath my feet save soil11 29 2017  the ground beneath my feet save soil
11 29 2017 the ground beneath my feet save soil
 
Cause and effect in the rock cycle
Cause and effect in the rock cycleCause and effect in the rock cycle
Cause and effect in the rock cycle
 
4 14 2017 moon phases notes
4 14 2017 moon phases notes4 14 2017 moon phases notes
4 14 2017 moon phases notes
 
4 11 2017 rotation and revolution
4 11 2017 rotation and revolution4 11 2017 rotation and revolution
4 11 2017 rotation and revolution
 
Air masses fronts
Air masses frontsAir masses fronts
Air masses fronts
 
Lab safety symbols & definition
Lab safety symbols & definitionLab safety symbols & definition
Lab safety symbols & definition
 
1 27 2016 water distribution on_the_earth
1 27 2016  water distribution on_the_earth1 27 2016  water distribution on_the_earth
1 27 2016 water distribution on_the_earth
 
Save soil
Save soilSave soil
Save soil
 
8 12 2015 minerals defined & properties revised
8 12 2015 minerals defined & properties revised8 12 2015 minerals defined & properties revised
8 12 2015 minerals defined & properties revised
 
3 31 2015 the universe & solar system
3 31 2015 the universe &  solar system3 31 2015 the universe &  solar system
3 31 2015 the universe & solar system
 
3 25 2015 severe weather ppt 014[1] with notes
3 25 2015 severe weather ppt 014[1] with notes3 25 2015 severe weather ppt 014[1] with notes
3 25 2015 severe weather ppt 014[1] with notes
 
3 17 2015 weather and climate
3 17 2015 weather and climate3 17 2015 weather and climate
3 17 2015 weather and climate
 
Changes in wave_properties
Changes in wave_propertiesChanges in wave_properties
Changes in wave_properties
 
Metamorphic rocks process of formation 2014
Metamorphic rocks process of formation 2014Metamorphic rocks process of formation 2014
Metamorphic rocks process of formation 2014
 
The ocean's composition
The ocean's compositionThe ocean's composition
The ocean's composition
 

Dernier

Spellings Wk 3 English CAPS CARES Please Practise
Spellings Wk 3 English CAPS CARES Please PractiseSpellings Wk 3 English CAPS CARES Please Practise
Spellings Wk 3 English CAPS CARES Please Practise
AnaAcapella
 
1029-Danh muc Sach Giao Khoa khoi 6.pdf
1029-Danh muc Sach Giao Khoa khoi  6.pdf1029-Danh muc Sach Giao Khoa khoi  6.pdf
1029-Danh muc Sach Giao Khoa khoi 6.pdf
QucHHunhnh
 
Seal of Good Local Governance (SGLG) 2024Final.pptx
Seal of Good Local Governance (SGLG) 2024Final.pptxSeal of Good Local Governance (SGLG) 2024Final.pptx
Seal of Good Local Governance (SGLG) 2024Final.pptx
negromaestrong
 

Dernier (20)

Spellings Wk 3 English CAPS CARES Please Practise
Spellings Wk 3 English CAPS CARES Please PractiseSpellings Wk 3 English CAPS CARES Please Practise
Spellings Wk 3 English CAPS CARES Please Practise
 
Application orientated numerical on hev.ppt
Application orientated numerical on hev.pptApplication orientated numerical on hev.ppt
Application orientated numerical on hev.ppt
 
Kodo Millet PPT made by Ghanshyam bairwa college of Agriculture kumher bhara...
Kodo Millet  PPT made by Ghanshyam bairwa college of Agriculture kumher bhara...Kodo Millet  PPT made by Ghanshyam bairwa college of Agriculture kumher bhara...
Kodo Millet PPT made by Ghanshyam bairwa college of Agriculture kumher bhara...
 
psychiatric nursing HISTORY COLLECTION .docx
psychiatric  nursing HISTORY  COLLECTION  .docxpsychiatric  nursing HISTORY  COLLECTION  .docx
psychiatric nursing HISTORY COLLECTION .docx
 
Python Notes for mca i year students osmania university.docx
Python Notes for mca i year students osmania university.docxPython Notes for mca i year students osmania university.docx
Python Notes for mca i year students osmania university.docx
 
Accessible Digital Futures project (20/03/2024)
Accessible Digital Futures project (20/03/2024)Accessible Digital Futures project (20/03/2024)
Accessible Digital Futures project (20/03/2024)
 
Spatium Project Simulation student brief
Spatium Project Simulation student briefSpatium Project Simulation student brief
Spatium Project Simulation student brief
 
Unit-V; Pricing (Pharma Marketing Management).pptx
Unit-V; Pricing (Pharma Marketing Management).pptxUnit-V; Pricing (Pharma Marketing Management).pptx
Unit-V; Pricing (Pharma Marketing Management).pptx
 
General Principles of Intellectual Property: Concepts of Intellectual Proper...
General Principles of Intellectual Property: Concepts of Intellectual  Proper...General Principles of Intellectual Property: Concepts of Intellectual  Proper...
General Principles of Intellectual Property: Concepts of Intellectual Proper...
 
1029-Danh muc Sach Giao Khoa khoi 6.pdf
1029-Danh muc Sach Giao Khoa khoi  6.pdf1029-Danh muc Sach Giao Khoa khoi  6.pdf
1029-Danh muc Sach Giao Khoa khoi 6.pdf
 
Micro-Scholarship, What it is, How can it help me.pdf
Micro-Scholarship, What it is, How can it help me.pdfMicro-Scholarship, What it is, How can it help me.pdf
Micro-Scholarship, What it is, How can it help me.pdf
 
Basic Civil Engineering first year Notes- Chapter 4 Building.pptx
Basic Civil Engineering first year Notes- Chapter 4 Building.pptxBasic Civil Engineering first year Notes- Chapter 4 Building.pptx
Basic Civil Engineering first year Notes- Chapter 4 Building.pptx
 
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
 
Unit-IV- Pharma. Marketing Channels.pptx
Unit-IV- Pharma. Marketing Channels.pptxUnit-IV- Pharma. Marketing Channels.pptx
Unit-IV- Pharma. Marketing Channels.pptx
 
Making communications land - Are they received and understood as intended? we...
Making communications land - Are they received and understood as intended? we...Making communications land - Are they received and understood as intended? we...
Making communications land - Are they received and understood as intended? we...
 
Seal of Good Local Governance (SGLG) 2024Final.pptx
Seal of Good Local Governance (SGLG) 2024Final.pptxSeal of Good Local Governance (SGLG) 2024Final.pptx
Seal of Good Local Governance (SGLG) 2024Final.pptx
 
Magic bus Group work1and 2 (Team 3).pptx
Magic bus Group work1and 2 (Team 3).pptxMagic bus Group work1and 2 (Team 3).pptx
Magic bus Group work1and 2 (Team 3).pptx
 
Mixin Classes in Odoo 17 How to Extend Models Using Mixin Classes
Mixin Classes in Odoo 17  How to Extend Models Using Mixin ClassesMixin Classes in Odoo 17  How to Extend Models Using Mixin Classes
Mixin Classes in Odoo 17 How to Extend Models Using Mixin Classes
 
microwave assisted reaction. General introduction
microwave assisted reaction. General introductionmicrowave assisted reaction. General introduction
microwave assisted reaction. General introduction
 
Introduction to Nonprofit Accounting: The Basics
Introduction to Nonprofit Accounting: The BasicsIntroduction to Nonprofit Accounting: The Basics
Introduction to Nonprofit Accounting: The Basics
 

Chapter 4 igneous rocks formation 20122013

  • 1. S6E5. Obtain, evaluate, and communicate information to show how Earth’s surface is formed.S6E5. Obtain, evaluate, and communicate information to show how Earth’s surface is formed. c. Construct an explanation of howc. Construct an explanation of how to classify rocks by their formationto classify rocks by their formation Objective: Students will completeObjective: Students will complete the graphic organizer aboutthe graphic organizer about formation of igneous rocksformation of igneous rocks Directions: Read each slide thenDirections: Read each slide then complete the graphic organizer.complete the graphic organizer.
  • 2. Rock Classification Rocks are divided into three main classes based on how they form: 1. Igneous 2. Sedimentary 3. Metamorphic Each type of rock can be further classified based on:  Composition and texture
  • 3. Composition  The chemical make up of the rock or what it is made of.  This can be minerals or other materials: shells, clay, plants, sand, pebbles
  • 4. Texture/Grains  Determined by the grains size, shape and position.  Igneous can be fine or coarse grain  Sedimentary can be characterized by observing lithified (cemented) inorganic grains, minerals, organic material, or fossil fragments. The wide range of textures common in sedimentary rocks is separated into clastic, chemical, and bioclastic (biochemical) groups.
  • 5. Texture/Grains Metamorphic textures consist of two main types: foliated and non-foliated textures. Texture can reveal the process that formed the rock.
  • 7. What are they?What are they?  Rock made from cooledRock made from cooled –LAVA, above ground orLAVA, above ground or –MAGMA, below groundMAGMA, below ground ..
  • 8. ClassificationClassification They are classifiedThey are classified in 3 ways:in 3 ways: 1.1.Texture – Grain/Texture – Grain/ mineralsminerals 2.2.Origin - where formedOrigin - where formed 3.3.Mineral Composition –Mineral Composition – made frommade from
  • 9. Grain SizeGrain Size Have….Have…. SPECIALSPECIAL NAMESNAMES
  • 10. Texture/GrainTexture/Grain  CoarseCoarse Grained = large grains, cooledGrained = large grains, cooled slowlyslowly Think about it…. If it cools over a long time – the grains have time to get big!Think about it…. If it cools over a long time – the grains have time to get big!  Most abundant intrusive rock isMost abundant intrusive rock is GRANITEGRANITE  FineFine Grained = small grains, cooledGrained = small grains, cooled fastfast Think about it… If it cools over a short time – the grains don’t have time to get big!Think about it… If it cools over a short time – the grains don’t have time to get big! Example:Example: BasaltBasalt
  • 11. Igneous Rock Formation-OriginIgneous Rock Formation-Origin  ExtrusiveExtrusive – formed ABOVE– formed ABOVE GROUND. It coolsGROUND. It cools fastfast so it hasso it has smallsmall grains.grains.  IntrusiveIntrusive – formed– formed UNDERGROUND. It coolsUNDERGROUND. It cools slowlyslowly soso it will haveit will have largelarge grains.grains. Laccolith
  • 12. Examples of each type of ROCK Fine Grained Basalt = Extrusive Igneous rock Course Grained Granite = Intrusive Igneous rock
  • 13. Mineral CompositionMineral Composition  How much silica is in the magma/lava?How much silica is in the magma/lava? –Low silica content = dark colored = MaficMafic – HighHigh silica content =silica content = lightlight colored =colored = Felsic High Silica Content Low Silica Content Felsic Igneous Rock Mafic Igneous Rock
  • 14. Lighter Darker Big Crystals Small or No Crystals Draw pictures of the different types of Igneous Rocks!
  • 15. Label the igneous rockLabel the igneous rock formationformation
  • 16. Ticket out: CHOOSE ONLYTicket out: CHOOSE ONLY ONEONE  What makes up the grains in an igneous rock? Illustrate grains of an igneous rock and explain why this happens Compare and contrast intrusive and extrusive igneous