AnswersGA-GSE Earth SystemsLab: Mineral and Rock Classification

Lab: Mineral and Rock Classification — Unit test Answers

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21
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Which phrase describes how metamorphic rocks form?

A
form from melting
B
form at Earth’s surface
C
form from sediments
D
form from existing rocks
22
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Which phrase describes foliated rocks?

A
tend to break in half
B
grains arranged randomly
C
tend to split apart along bands
D
grains arranged in increasing size
23

Which example describes a use for gemstones?

A
fabrics
B
plastics
C
drill bits
D
paper clips
24

Which describes gneiss?

A
igneous
B
formed from shells
C
tends to split along bands
D
grains randomly arranged
25

This image shows a model of the rock cycle.

Question illustration
A
compacting of sediments on the mountain
B
cooling as the lava runs down the mountain
C
weathering of the mountain from the environment
D
eroding of different rocks at the base of the mountain
26

Which statement describes seismic waves?

A
They carry energy.
B
They move in one direction.
C
They originate from the epicenter.
D
They only vibrate at Earth’s surface.
27

Which statement best describes the theory of plate tectonics?

A
Plates sometimes move closer to one another.
B
Sections of Earth that shift are part of Earth’s asthenosphere.
C
Sections of Earth’s continents are in slow, constant movement.
D
Parts of the ocean floor move as they are carried by rift valleys.
28

Which material is an aquifer layer most likely made of?

A
soil
B
clay
C
solid granite
D
cracked rocks
29

Which phrase describes non-foliated rocks?

A
have grains in parallel layers
B
include quartzite and marble
C
tend to split along their bands
D
form from crystallized magma
30

Which process begins the formation of sedimentary rock?

A
the movement of sediment
B
the cementation of rock sediment
C
the breakdown of rock into sediment
D
the buildup of sediment in one location
31

Which statement describes an attribute of an artesian well?

A
requires a bucket
B
uses natural pressure
C
needs a mechanical pump
D
is heated by hot rocks or magma
32

Fran finds a dark-colored rock that she identifies as basalt. Which property gives the rock its dark color?

A
its shape
B
its banding
C
its grain size
D
its mineral content
33

Which correctly lists the three agents that must be present for cementation to occur?

A
minerals, heat, sediment
B
water, minerals, sediment
C
heat, animals, plants
D
sediment, heat, animals
34

Which correctly lists three places that fresh water is found?

A
rivers, oceans, lakes
B
oceans, coastal wetlands, seas
C
ice sheets, water vapor, rivers
D
water vapor, streams, oceans
35

Sophia was studying with Maalik about the layers of the Earth. They were given several different statements about the layers.Which statement about the layers would they identify as correct?

A
The outer core is less than 70 km in thickness.
B
The crust assists in forming Earth’s magnetic field.
C
The mantle is denser than the crust.
D
Pressure increases when moving from the core to the crust.
36

Which substance would most likely form sedimentary rock?

A
cooled lava
B
melted rock
C
changed igneous rock
D
small pebbles
37

Which statement best describes the formation of metamorphic rocks?

A
Magma cools and crystallizes slowly beneath Earth’s surface.
B
Liquid lava erupts from a volcano and cools quickly at Earth’s surface.
C
Sand and gravel are deposited at the mouth of a river and, over time, form layers that solidify into rock.
D
Ancient sandstone beaches become buried deep beneath Earth’s surface, where they are exposed to extreme heat and pressure.
38

The image shows the Great Rift Valley in Africa, an example of a rift valley.

Question illustration
A
The rift valley formed when the crust pulled apart.
B
The rift valley formed due to subduction.
C
The rift valley formed similarly to an island arc.
D
The rift valley formed at a convergent boundary.
39

Which increases along faults and leads to rock breaking?

A
damage
B
earthquake
C
focus
D
stress
40

What may occur when convergent boundaries interact?

A
formation of island chains
B
creation of mid-ocean ridges
C
creation of convection currents
D
formation of rift valleys

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