Chapter 9 Question Preview (ID: 45527)


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How do coarse grained igneous rocks form?
a) from sedimentary rocks changed under pressure
b) from large rock particles cemented together
c) from rapidly cooling lava
d) from slowly cooling magma

Which of the following rocks can harden on Earth’s surface?
a) Igneous rock
b) Metamorphic rock
c) Sedimentary rock
d) Intrusive rock

What is the hardest substances known to man?
a) Sedimentary Rock
b) Obsidian
c) Diamond
d) Coal

Which forms when minerals dissolved in a water solution crystallize?
a) clastic rock
b) organic rock
c) chemical rock
d) sediment

Which rock can be chemical or an organic rock?
a) limestone
b) sandstone
c) shale
d) conglomerate

Which is an example of an organic rock?
a) Breccia
b) coal
c) rock salt
d) shale

Which term best describes igneous rock?
a) light and easily broken
b) soft and smooth
c) hard and dense
d) soft and dense

You find a deposit of organic limestone. In what type of setting did it probably form?
a) the ocean
b) a volcano
c) a swamp
d) a sand dune

Streak is the color of a mineral’s __________.
a) luster
b) fracture
c) cleavage
d) powder

An old river has been through 100s or 1000s of years of weathering, erosion, and deposition. Due to these events, this river would _____________________________.
a) dry up
b) become a salt water river
c) snake back and forth with many curves
d) never change

What does weathering do?
a) Break down rocks
b) Carries away pieces of rock
c) Deposit pieces of rock
d) Heat pieces of rock

Which of the following would eventually turn igneous rock into metamorphic rock?
a) The igneous rock melts completely.
b) The igneous rock is shifted under other rock due to plate movement
c) The igneous rock goes through erosion and weathering.
d) the igneous rock is weathered by wind and water.

The process by which metamorphic rock changes to igneous rock begins with
a) melting
b) erosion
c) deposition
d) crystallization

A rock that forms from many small fragments of other rocks is a(n)
a) igneous rock
b) sedimentary rock
c) metamorphic rock
d) extrusive rock

Which statement best describes how an extrusive rock forms?
a) Magma cools quickly on Earth’s surface.
b) Magma cools slowly to form granite.
c) Magma cools quickly below Earth’s surface.
d) Magma cools slowly beneath Earth’s surface.

What process causes many sedimentary rocks to have visible layers?
a) Eruption
b) intrusion
c) crystallization
d) deposition

If heat and pressure inside Earth cause the texture and crystal structure of a rock to change, what new material is formed?
a) Sedimentary
b) Metamorphic
c) Igneous
d) Chemical

You find rock in which the grains are arranged in wavy, parallel bands of white and black crystals. What kind of rock have you probably found?
a) Igneous
b) Sedimentary
c) Metamorphic
d) Extrusive

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