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WorksheetsGeologic Time Review
Total questions: 12
Worksheet time: 8mins
Name
Class
Date
1.
How old do Paleontologists believe the Earth is?
a)
2019 years old
b)
3.6 billion years old
c)
4.6 billion years old
d)
4.6 million years old
2.
The Law of Superposition helps scientists to determine what?
a)
The absolute age of rock layers
b)
The age of fossils
c)
The relative age of rock layers
d)
the super powers of squirrels
3.
According to the law of superposition, the oldest fossils are found
a)
At the top of the rock layers
b)
Near the bottom of the rock layers
c)
In the middle of the rock layers
d)
Somewhat near the surface
4.
Traces or remains of organisms that lived long ago
a)
Fossil
b)
Unconformity
c)
Superposition
d)
Column
5.
How does absolute age differ from relative age?
a)
only absolute dating indicates which rock is older than another
b)
only absolute dating finds the age in years
c)
only relative dating finds the age in years
6.
Scientists use radioactive decay to measure...
a)
relative time
b)
absolute time
c)
half-lives
d)
time of day
7.
The length of time required for half of the radioactive atoms in a sample to decay is its...
a)
era
b)
age
c)
half-life
d)
eon
8.
How does the law of crosscutting explain the age of a fault?
a)
The fault is younger than the rocks above it.
b)
The fault is younger than the rocks it cuts through.
c)
The fault is older than the rocks above it.
d)
The fault is older than the rocks it cuts through.
9.
How does sedimentary rock usually form?
a)
Vertically
b)
Folding
c)
Diagonally
d)
Horizontally
10.
The original element that undergoes radioactive decay is known as the...
a)
daughter element
b)
half-life
c)
parent element
d)
radioactive decay
11.
The element that is the product of radioactive decay is known as the...
a)
daughter element
b)
half-life
c)
parent element
d)
carbon-14
12.
Which of the following correctly lists the layers in order from oldest to youngest?
a)
A, B, C, D, E
b)
E, B, C, D, A
c)
E, D, C, B, A
d)
C, B, A, D, E
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