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Index Fossils

Authored by Jean Lacob

Science

9th Grade

16 Questions

NGSS covered

Used 37+ times

Index Fossils
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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What type of rock are fossils found in?

Igneous

Sedimentary

Metamorphic

Tags

NGSS.MS-ESS2-3

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which characteristics of a fossil would make it useful as an index fossil in determining the relative age of widely separated rock layers?

a wide time range and a narrow geographic range

a wide time range and a wide geographic range

a narrow time range and a wide geographic range

a narrow time range and a narrow geographic range

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Index fossils help scientists estimate the age of a rock because index fossil species only existed for a relatively short time. What happened to the species that are now used as index fossils?

They became extinct.

They changed their diets.

They hid in marine sediments.

They migrated to new environments.

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The diagram below represents three bedrock outcrops. The layers have not been overturned. Letters A through E identify different rock layers. Fossils found in the rock layers are shown.

Which fossil could be classified as an index fossil?

Media Image
Media Image
Media Image
Media Image

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The cross sections below represents three widely separated outcrops of exposed bedrock. Letters A, B, C, and D represent fossils found in the rock layers.

Which fossil appears to have the best characteristics of an index fossil?

A

B

C

D

Tags

NGSS.MS-ESS1-4

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

The geologic columns AB, and C in the diagrams below represent widely spaced outcrops of sedimentary rocks. Symbols are used to indicate fossils found within each rock layer. Each rock layer represents the fossil record of a different geologic time period.

According to the diagrams for all three columns, which would be the best index fossil?

Media Image
Media Image
Media Image
Media Image

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

NGSS.MS-LS4-2

7.

DROPDOWN QUESTION

1 min • 1 pt

Index fossils are globally ​ (a)   .

widespread
extinct
abundant
distinctive

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