Earth Science: Earth Materials and Processes, Book F

Chapter 2: Rocks

Rocks

1
Weathering is an example of what kind of breakdown?
A)only chemical
B)chemical and physical
C)only mechanical
D)chemical and mechanical
2
Extrusive rocks __________.
A)have small mineral grains and are formed on top of Earth's surface
B)have large mineral grains and are formed beneath Earth's surface
C)have large mineral grains and are formed on top of Earth's surface
D)have small mineral grains and are formed beneath Earth's surface
3
What does the term rock removal mean?
A)Chemical elements that make up minerals and rocks are destroyed through erosion.
B)Rock carried away by the wind or water is lost from Earth forever.
C)Rock may be carried away by the wind or water, but it is never lost.
D)The rock cycle removes rock by creating or destroying matter.
4
Igneous rocks can be __________.
A)only intrusive
B)intrusive or extrusive
C)neither extrusive nor intrusive
D)only extrusive
5
How is shale transformed into slate?
A)Shale cools on Earth's surface.
B)Shale collects at the bottom of lakes.
C)Shale cools within Earth's surface.
D)Shale undergoes intense pressure and temperature changes within Earth.
6
Why can't humans just make more fossil fuels like coal?
A)because coal is formed from synthetic materials that humans don't have access to
B)because coal is formed over millions of years of compacting materials within Earth
C)because we're not sure what coal is made from
D)because we're not sure how coal is made
7
Why do chemical sedimentary rocks have a non-clastic texture?
A)because they are made from volcanic rock
B)because they are made from pieces of other rocks
C)because they're not made from pieces of other rocks
D)because they are made from igneous rocks
8
Why does the United States have large areas of limestone?
A)because seas covered much of the country for millions of years
B)because desert covered much of the country for millions of years
C)because forests covered much of the country for millions of years
D)because fields covered much of the country for millions of years
9
The rock cycle suggests that __________.
A)rocks are always being added to Earth's mass
B)rocks always stay in the same form
C)rocks disappear from Earth as they go underground
D)rocks are continually recycled into different forms
10
What are rocks that have changed due to temperature and pressure called?
A)metamorphic rocks
B)sedimentary rocks
C)lava rocks
D)igneous rocks
11
A metamorphic rock with a foliated texture _________
A)has mineral grains that form no distinct pattern
B)has mineral grains that have lined up perpendicular to each other
C)has mineral grains that have lined up in parallel lines
D)has mineral grains that have lined up in diagonal lines
12
Why are mafic rocks dark?
A)because they contain large amounts of sodium
B)because they contain large amounts iron and magnesium
C)because they contain large amounts of silica
D)because they have been scorched by high temperatures
13
Why are some rocks called intermediate rocks?
A)They are formed within felsic and mafic rocks.
B)They are found between felsic and mafic rocks.
C)Their size is generally smaller than felsic, but larger than mafic rocks.
D)They have mineral compositions between felsic and mafic rocks.
14
Why does magma rise to the surface?
A)because magma is less dense than the surrounding rock
B)because magma is more dense than the surrounding rock
C)because magma is less dense than lava
D)because the rocks actually move and force the magma out
15
When minerals act like glue to hold sediments together this is called __________.
A)filtration
B)mineralization
C)fermentation
D)cementation
16
Felsic rocks are __________.
A)all answers are correct
B)rocks that have a high concentration of silica
C)light colored rocks
D)igneous rocks
17
Nonfoliated rocks__________.
A)are metamorphic and exhibit layering
B)are metamorphic but do not exhibit layering
C)are formed only in the northern hemisphere
D)are not classified as metamorphic
18
Igneous rocks __________.
A)are the most commonly found rocks on Earth
B)are found mostly on the surface
C)are formed in the same way as sedimentary rocks
D)are the rarest rocks found on Earth
19
Sedimentary rocks __________.
A)form when sediment is pressed together
B)form from existing rocks
C)all answers are correct
D)often form in layers
20
Intrusive rocks __________.
A)have large mineral grains and are formed on top of Earth's surface
B)have small mineral grains and are formed beneath Earth's surface
C)have large mineral grains and are formed beneath Earth's surface
D)have small mineral grains and are formed on top of Earth's surface
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