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ROCK
Jeopardy!
ROCK Jeopardy!
Sedimentary Metamorphic
Rock
Cycle
Classifying
Igneous
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What are rocks made
of?
Minerals and other
materials.
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The size, shape, &
pattern of rock grains
is called what?
Texture.
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A rock like Pumice has
many holes in it and
can be described as
_______. How does
this affect its density?
Porous. This
makes the rock
less dense and able
to float in water.
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What is the texture of a
rock with visible, large
grains?
Small grains, easier to
see with a hand lens?
1. Coarse-grained
2. Fine-grained
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How can a rock
have no grains?
Give an example.
If rock cools very quickly,
large crystals will not form,
resulting in smooth, glassy
texture. Ex: Obsidian.
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Final
Jeopardy
How are Igneous
rocks classified?
1. Origin
2. Texture
3. Mineral Composition
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What are the 2 origins an
Igneous rock can have,
and where are they?
Intrusive & Extrusive;
inside the crust and on
the surface.
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An Igneous rock texture
that has widely varying
sizes of crystals.
Porphyritic.
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What compound changes the
color of rock?
How does the color change
when the amount of compound
increases / decreases?
Silica - more Silica gives a
lighter color. Less Silica
gives a darker color.
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Describe the texture
of each sample:
1
2
3
4
1.
2.
3.
4.
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Fine-grained
Porphyritic
Coarse-grained
No crystals
Final
Jeopardy
What are the 3 types
of Sedimentary
rocks?
1. Clastic
2. Organic
3. Chemical
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What is sediment and
how is it created?
Sediment: pieces of
material from rock or
living things. Created
by weathering.
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What are the 2 types
of weathering? Give
2 examples of each.
1.
2.
3.
4.
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1.
2.
3.
4.
Mechanical / Physical
Abrasion
Plants
Animals
Freezing / Thawing
Chemical
Water
Acid Rain
Carbon Dioxide (CO2)
Oxygen (Rust)
Describe the differences
between Clastic, Organic,
& Chemical rock.
•Clastic: formed mainly
through compaction
•Organic: contains remains
of once living creatures
•Chemical: forms from
solution - evaporation
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List and describe the
5 steps that form
Sedimentary rocks.
1. Weathering: breaking rocks down into
sediment
2. Erosion: carrying sediments by wind or
water
3. Deposition: when sediment is “dropped off”
4. Compaction: layers of rock pressing
together
5. Cementation: solution crystallizes, gluing
sediment together
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Final
Jeopardy
What are the 2 driving
forces of Metamorphism?
Heat & Pressure
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True or False: Continental
crust is made mostly of
gneiss and the oceanic crust
is made mainly from schist.
If false, how would you make this
statement true?
False: continental crust
is made of Granite &
oceanic crust is made
from Basalt.
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What are the
Metamorphic forms of
Limestone, Shale, &
Granite?
1. Marble
2. Slate
3. Schist / Gneiss
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What are the 2 classifications
of metamorphic rocks?
Describe them.
Foliated & Non-foliated.
Foliated has grains arranged in
layers. Non-foliated has grains
that are randomly placed.
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What are 5 things that
are most likely to
change when a rock
becomes Metamorphic?
1.
2.
3.
4.
5.
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Appearance
Texture
Crystal structure
Mineral composition
Density
Final
Jeopardy
What is the Rock Cycle?
An ongoing process at &
beneath the surface that is
constantly building and
destroying rocks of all types.
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True or False: the rock
cycle only operates in
one direction. Explain.
False: rocks can move along the rock cycle in
any direction if the environment permits.
Uplift can expose Igneous, Metamorphic or
Sedimentary rocks at any time, and all rocks
can be buried further under the surface.
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What major type of rock
would most likely have
fossils? Why would the
other types of rock not
have fossils?
Sedimentary rocks. Igneous rocks
come from molten material, so
the fossils would be destroyed.
Metamorphic rocks might contain
fossils, but are less likely to.
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Describe 2 ways an
Igneous rock can become
a Metamorphic rock.
•Can be Extrusive, gets weathered,
compacted into Sedimentary rock, then
buried deeper and metamorphose.
•Can be Intrusive, remain buried, then
undergo metamorphism.
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Describe a texture associated
with each major type of rock.
1. Igneous is notable for
Porphyritic texture (large &
small crystals)
2. Sedimentary rock like
limestone is rich with fossils
3. Metamorphic rock often has
layers
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Final
Jeopardy
Fill in the missing steps.
2
1
7
3
5
6
4
1.
2.
3.
4.
Weathering
Erosion
Sedimentary Rock
Heat & Pressure
5.
6.
7.
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Metamorphic Rock
Melting
Igneous Rock