AnswersMO-Earth and Space Science ALab: Mineral and Rock Classification

Lab: Mineral and Rock Classification — Unit test Answers

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1
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What is the relationship between the rate at which molten material cools and a mineral's crystals?

A
The faster the cooling, the larger the crystals.
B
The slower the cooling, the larger the crystals.
C
The rate at which molten material cools does not affect crystal shape.
D
The rate at which molten material cools does not affect crystal size.
3

Which statement describes the location of an earthquake’s epicenter?

A
It is located using a single set of data.
B
It is determined by the Mercalli Scale.
C
It is determined by the arrival time of surface waves.
D
It is located at the point directly above the focus
4

Which statement describes divergent boundaries?

A
Divergent boundaries are found only on land.
B
Subduction occurs at divergent boundaries.
C
Plates move toward each other at divergent boundaries.
D
Magma flows from cracks in the crust at divergent boundaries.
5

What is magma?

A
solid rock with a fine texture
B
cooled rock with large crystals
C
molten rock below Earth’s surface
D
flowing rock above Earth’s surface
8

Which process forms sedimentary rock in the rock cycle after sediments accumulate and combine?

A
Sediments undergo heat and pressure.
B
Sedimentary rock weathers and erodes.
C
Sediments compact and cement together.
D
Sedimentary rock experiences cooling and melting.
11

Which example is most likely made from both metals and gemstones?

A
necklace
B
soda can
C
window frame
D
kitchen utensil
12

Where are extrusive igneous rocks typically found?

A
in a canyon
B
in a riverbed
C
near a dormant volcano
D
deep under Earth’s surface
13

Which statement is an example of an observation a scientist would make to classify a rock?

A
A rock is larger than other rocks.
B
A rock was found in a stream.
C
A rock is formed from molten lava.
D
A rock cracks in half after a rainstorm.

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