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Relative Dating

Total questions: 25

Worksheet time: 26mins

Name
Class
Date
1.
States that younger rocks lie above older rocks if the layers have not been disturbed
a)
Law of crosscutting
b)
Law of superposition
c)
Relative Dating
d)
Unconformity
2.
A break in the geologic record that is made when rock layers are eroded over a long period of time
a)
Law of Superposition
b)
Law of Crosscutting
c)
Relative Dating
d)
Unconformity
3.
What are the relative ages of the features in order from oldest to youngest?
a)
Limestone, Basalt, Fault, Siltstone
b)
Siltstone, Fault, Basalt, Limestone
c)
Limestone, Fault, Basalt, Siltstone
d)
Limestone, Siltstone, Fault, Basalt
4.
Which of the following is the oldest?
a)
Layer L
b)
Intrusion D
c)
Intrusion H
d)
Layer E
5.
Analyze the seashell found in the white layer.  Which statement is true of the rock layer that contains this fossil?
a)
It could also contain a fossil from the bottom layer.
b)
It is older than the layers below it.
c)
It is younger than the layers above it.
d)
It is older than the layers above it.
6.
How do geologists use relative dating?
a)
Placing rocks in order from youngest to oldest
b)
Placing rocks in order by minerals they contain
c)
Classifying rocks by different textures
d)
Classifying rocks by different isotopes
7.
How have the rocks been disturbed?
a)
tilting
b)
folding
c)
faulting
d)
igneous intrusion
8.
Which letter indicates an igneous intrusion?
a)
A
b)
C
c)
D
d)
E
9.
Relative dating determines the...
a)
precise age of fossils
b)
age of fossils compared to others
c)
climate fossils survived in
d)
movement of continents
10.
An organism that no longer exists on Earth is called
a)
Decayed
b)
Evolved
c)
Extinct
d)
Preserved
11.
The best index fossils have which two traits?
a)
widespread geographically, long lifespan
b)
widespread geographically, short lifespan
c)
specific place, long lifespan
d)
specific place, short lifespan
12.
Which of the following organisms formed last on Earth?
a)
Jellyfish
b)
Shark
c)
Lizards
d)
Horses
13.
What is a fossil?
a)
the remains or physical evidence of an organism preserved by geologic processes
b)
fossils can be preserved in rock, amber, asphalt, or ice
c)
any naturally preserved evidence of animal activity
d)
fossil of an organism that lived during a relatively short period of time
14.
this material does an excellent job of preserving insect remains
a)
cast
b)
amber
c)
mold
d)
carbon film
15.
provides evidence about the history of life and past environments on earth, and how life has changed over time
a)
relative dating
b)
fossil record
c)
unconformities
16.

a model scientists use to describe the timing of events and the relationships between those events in earth’s history.

a)

geologic time scale

b)

era

c)

period

d)

epoch

17.

a fossil found in a narrow time range but widely distributed around the earth; used to date rock layers.

a)

Petrified

b)

Mold

c)

Cast

d)

Index

e)

Trace Fossil

18.

Uses radioactive elements near the fossils to determine the actual age of the fossils.

a)

Relative Dating

b)

Absolute Dating

19.
Scientists use radioactive decay to measure...
a)
relative time
b)
absolute time
c)
half-lives
d)
time of day
20.
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
21.

Layer B on side #1 (left) is a match to which layer on side #2 (right)?

a)

z

b)

y

c)

w

d)

there is no match

22.

What is the correct order of the rock layers from oldest to youngest?

a)

F, E, C, B, A, D

b)

F, E, D, C, B, A

c)

A, B, C, D, E, F

d)

D, F, E, C, B, A

23.
What do the bubbles in ice cores represent?
a)
Tiny samples of earth's atmosphere when the ice formed.
b)
Types of plants that lived in an area.
c)
The annual growth or shrinkage of a glacier.
d)
More bubbles are indicative of increased precipitation.
24.

Since 1958, increased levels of CO2 have been detected in ice cores. Which is most likely responsible for this increase?

a)

Using wind turbines

b)

Using moving water to generate electricity

c)

Burning fossil fuels

25.

If a layer of volcanic ash is found in an ice core, what does that indicate?

a)

Ash borer beetles lived in that habitat.

b)

A volcanic eruption occurred.

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