What is the law of superposition?

Sedimentary rock in it's original position is older than layers above it.

The age of sedimentary rock not found in the original layers.

Metamorphic rock is younger than the nearby igneous rock.

Metamorphic rock is older because it was deposited to nearby sedimentary rock.

How does the law of crosscutting explain the age of a fault?

The fault is younger than the rocks it cuts through.

The fault is younger than the rocks above it.

The fault is older than the rocks above it.

The fault is older than the rocks it cuts through.

Analyze the seashell found in the white layer. Which statement is true of the rock layer that contains this fossil?

It is older than the layers above it.

It could also contain a fossil from the bottom layer.

It is older than the layers below it.

It is younger than the layers above it.

How do geologists use relative dating?

Placing rocks in order from youngest to oldest

Placing rocks in order by minerals they contain

Classifying rocks by different textures

Classifying rocks by different isotopes

What are the relative ages of the features in order from oldest to youngest?

Limestone, Siltstone, Fault, Basalt

Limestone, Basalt, Fault, Siltstone

Siltstone, Fault, Basalt, Limestone

Limestone, Fault, Basalt, Siltstone

The Law of Superposition helps scientists to determine what?

The relative age of rock layers

The absolute age of rock layers

The Geologic Time Scale is a record of what?

the known history of rocks and fossils

a list of every living thing ever

According to the law of superposition, the oldest fossils are found

Near the bottom of the rock layers

In the middle of the rock layers

How do scientists use fossils to determine the relative ages of rock layers?

by comparing fossils in many different rock layers

by comparing all the fossils in one rock layer

by determining the positions of fossils in many different rock layers

by locating other areas of the world where the same fossils are found

Geologic Time and Relative Dating Quiz

28 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

geologic time scale

era

period

epoch

Tags

NGSS.MS-ESS1-4

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

one of four long periods of geologic time from Precambrian to the present.

geologic time scale

era

period

epoch

Tags

NGSS.MS-ESS1-4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

geologic time intervals that eras are divided into.

geologic time scale

era

period

epoch

Tags

NGSS.MS-ESS1-4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

a division of geologic time; a subdivision of a period. Shortest length of time.

geologic time scale

era

period

epoch

Tags

NGSS.MS-ESS1-4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What Era were mammals first seen?

Precambrian

Paleozoic

Mesozoic

Cenozoic

Tags

NGSS.MS-LS4-1

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

According to paleontologists, how old is the Earth?

3.5 Billion Years Old

543 Million Years Old

57 Million Years Old

4.6 Billion Years Old

Tags

NGSS.MS-ESS1-4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Analyze the layers of undisturbed sedimentary rock. Which layer of sedimentary rock is oldest?

Q

R

S

T

U

Tags

NGSS.MS-ESS1-4

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Geologic Time and Relative Dating

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

one of four long periods of geologic time from Precambrian to the present.

geologic time intervals that eras are divided into.

a division of geologic time; a subdivision of a period. Shortest length of time.

What Era were mammals first seen?

According to paleontologists, how old is the Earth?

Analyze the layers of undisturbed sedimentary rock. Which layer of sedimentary rock is oldest?

Relative dating of rock layers tells us that the deeper we dig, ______________________.

Used to determine whether an object is older or younger than other objects

States that younger rocks lie above older rocks if the layers have not been disturbed

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