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Geologic Time Scale Review

Authored by Paul Vachon

Science

7th Grade

Geologic Time Scale Review
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33 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the law of superposition?

The oldest layer is on the bottom, and the layers get progressively younger toward the top.

The youngest layer is on the bottom, and the layers get progressively older toward the top.

Layers are arranged in random order.

All layers are the same age.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the law of crosscutting?

A fault or intrusion is younger than the rocks it cuts through.

A fault or intrusion is older than the rocks it cuts through.

A fault or intrusion is the same age as the rocks it cuts through.

A fault or intrusion does not affect the age of the rocks.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the law of inclusions?

Inclusions are older than the rock layer they are found in.

Inclusions are younger than the rock layer they are found in.

Inclusions are the same age as the rock layer they are found in.

Inclusions do not affect the age of the rock layer.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the two basic approaches to discovering the age of rocks?

Relative age dating and absolute age dating

Fossil dating and mineral dating

Carbon dating and uranium dating

Superposition dating and isotope dating

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the Rule of Superposition state about rock layers?

Older rock layers are on top of newer ones

Newer rock layers are on top of older ones

Rock layers are randomly arranged

All rock layers are the same age

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is absolute age dating based on?

The color of the rock

The size of the rock

Fossils and radioactive decay

The location of the rock

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why are fossils important in age dating?

They are colorful

They are easy to find

They represent a period of time

They are made of minerals

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