7th Grade, Unit 3-rocks: Question Preview (ID: 32216)


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The three groups of rock are sedimentary, metamorphic, and
a) limestone
b) igneous
c) granite
d) coal

The rock cycle shows how rocks continually
a) increase in size
b) increase in number
c) become more complex
d) change over time

Which kind of rock forms when molten rock cools?
a) metamorphic
b) igneous
c) sedimentary
d) extrusive

An existing rock can change into another type of rock when it is subjected to great
a) pressure
b) winds
c) flooding
d) foliation

Which kind of rock forms by recrystallization?
a) intrusive igneous
b) extrusive igneous
c) sedimentary
d) metamorphic

Geologists classify igneous rock on the basis of its crystal size and the amount of ______________________ its minerals contain.
a) carbon
b) sediment
c) silica
d) foliation

Pieces of rock can settle from water and get cemented into
a) metamorphic rock
b) igneous rock
c) sedimentary rock
d) extrusive rock

Rock salt is an example of a sedimentary rock that develops from dissolved minerals as
a) water evaporates
b) magma cools
c) sediments break down
d) sand settles in water

What is the difference between a rock and a mineral?
a) they are the same
b) minerals have orderly structure and rocks do not
c) Minerals are made out of rocks
d) rocks do not contain minerals

The texture of igneous rock is related to the rate at which it cooled. If the rock cools slowly, _________ crystals form
a) small
b) medium
c) large
d) any size

The texture of igneous rock is related to the rate at which it cooled. If the rock cools quickly, _________ crystals form
a) small
b) medium
c) large
d) any size

if you found a fossil, which type of rock would you know it is?
a) extrusive
b) sedimentary
c) igneous
d) metamorphic

what happens during Sedimentation?
a) lava cools quickly into igneous rock
b) rocks are put under high pressure
c) Particles were left behind and slowly pressed together
d) rock is broken down into smaller pieces

what does it look like if a rock is foliated?
a) The rock has metallic luster
b) The different minerals form bands in the rock
c) The rock has been imprinted with a fossil
d) The rock is broken on flat surfaces

which type of rock would you find At the bottom of a large lake?
a) igneous
b) metamorphic
c) sedimentary
d) extrusive

which rock type would you find in Older rock surrounding an igneous intrusion
a) igneous
b) sedimentary
c) metamorphic
d) extrusive

which type of rock would you find at A lava flow from a volcano
a) igneous
b) metamorphic
c) sedimentary
d) intrusive

which type of rock would you find in a part of the surface that was once deep within a mountain range
a) igneous
b) sedimentary
c) metamorphic
d) extrusive

which type of rock would you find in the sides of a cave?
a) igneous
b) metamorphic
c) sedimentary
d) extrusive

A rock that contains traces of a once living thing is called a
a) mineral
b) fossil
c) gem
d) igneous rock

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