chapter 8 section 2 igneous and sedimentary rocks
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Chapter 8 Section 2 Igneous and sedimentary rocks. Mr. Perez. Chapter 8 Section 3 Metamorphic rocks and rock cycle. Section 2 Vocabulary. Lava- molten rock material that exists at or above Earth’s surface Igneous rock- rock formed when melted rock material from inside Earth cools - PowerPoint PPT PresentationTRANSCRIPT
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Mr. PerezCHAPTER 8 SECTION 2IGNEOUS AND SEDIMENTARY ROCKS
CHAPTER 8 SECTION 3METAMORPHIC ROCKS AND ROCK CYCLE
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Lava- molten rock material that exists at or above Earth’s surface
Igneous rock- rock formed when melted rock material from inside Earth cools
Extrusive- melted rock material cools on Earth’s surface
Intrusive- melted rock materials cools below Earth’s surface
Sedimentary rock- sediment collected in layers and compacted together
SECTION 2 VOCABULARY
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Igneous RocksType Form from
molten rock called
Have cooling rate
that is
Have crystal size that is
Extrusive Lava Fast Small
Intrusive Magma Slow Large
IGNEOUS ROCK DETAILS
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Igneous Rocks can be
Light colored
HaveHigh silica
content
Are called Granitic
Dark colored
HaveLow silica content
Are calledBasaltic
ORGANIZE IGNEOUS ROCKS
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Detrital Chemical OrganicForm from Made of grains
of minerals or other rocks
Dissolved mineral in seawater, geysers, hot springs, or salty lakes
Living matter that has died
How form Moved and been deposited in layers by water, ice, gravity or wind
Evaporation or other chemical processes
Piled up and compressed into rock
Where form Land or water Water Land or oceanExamples Sandstone,
Shale, Conglomerate, Siltstone
Halite Chalk, coal, limestone
CLASSIFY SEDIMENTARY ROCKS
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Pressure- force applied over a given areaMetamorphic rock- new rocks that form when existing
rocks are heated or squeezed but not meltedFoliated- rocks that have visible layers or elongated
grains of mineralNonfoliated- rocks that do not have distinct layers or
bands of minerals Rock cycle- cycle that describes how different kinds
of rock are related to one another and how rocks change from one type to another
SECTION 3 VOCABULARY
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Conditions of Metamorphic Rock Formation
Temperature High
Pressure High
Time Millions of years
SUMMARIZE METAMORPHIC ROCKS
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DRAW METAMORPHIC ROCKS
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Foliated rocks include:
DRAW METAMORPHIC ROCKS
slategneiss
schist
phyllite
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Nonfoliated rocks include:
DRAW METAMORPHIC ROCKS
quartzite
marble
soapstone
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http://www.learner.org/interactives/rockcycle/diagram.html
ROCK CYCLE INTERACTIVE
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Chapter 8 vocabulary quiz on A: 12/10 or B:12/11 Band kids will take it during the next class period
Mineral Mania Mini Project due A: 12/10 or B: 12/11
Bring in old crayons, aluminum foil, wax paper and pencil sharpeners A: 12/10 or B: 12/11
Rock cycle quiz on A: 12/12 or B: 12/13 Study the diagram on p. 237. Be able to describe it in words and fill in the words on
the arrows
REMEMBER!
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Florida Science Grade 7Glencoe Science & McGraw Hill Publishing
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