New York Science Grade 7

Section 2: Relative Ages of Rocks

Section Quizzes - English

1
What is the principle of superposition?
A)that younger things are on the bottom, and older ones are closer to the top
B)that older and some younger things are on the bottom, and most younger ones closer to the top
C)that younger and some older things are on the bottom, and most older ones closer to the top
D)that older things are on the bottom, and younger ones are closer to the top
2
The relative age of something is __________.
A)its age in relation to Earth
B)its age since it was discovered
C)its age in comparison to other things
D)its age since it died
3
How do unconformities form?
A)when erosion removes portions of rock by washing or scraping them away
B)when animals remove portions of rock by scraping them away
C)when rocks are displaced by growing roots
D)when animals add portions of rock by depositing them in the empty spaces
4
When horizontal layers of sediment are tilted or uplifted, scientists call this __________.
A)disconformity
B)nonconformity
C)normal unconformity
D)angular unconformity
5
When younger sediments are deposited on top of an older area of erosion, scientists call this __________.
A)angular unconformity
B)nonconformity
C)normal unconformity
D)disconformity
6
When sedimentary rock is deposited on top of igneous or metamorphic rock, scientists call this __________.
A)disconformity
B)angular unconformity
C)nonconformity
D)normal unconformity
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