Fossils, Geologic Time Scale

The diagrams below represent rock layers found in 2 different locations by 2 different scientists. The scientist at Location X used letters to label his rock layers, while the scientists at Location Y used Roman numerals to label her layers.

The scientists both used the same colors and patterns to represent different types of rocks. They also used the same set of black and white symbols to represent specific types of fossils in the layers. By correlating layers based on fossils and rock types, the 2 scientists have discovered that certain rock layers are present in both locations.

Which layers are the same?

• Layers P, Q, R, and S are the same as layers IV, V, VI and VII.

• Layers T and U are the same as layers I and II.

• Layers P, Q, R, and S are the same as layers I, II, III, IV.

• Layers T and U are the same as layers VI and VII.

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Which of the following correctly lists the layers of rock in order from youngest to oldest?

• A, B, C, D, E
• B, C, D, E, A
• E, D, A, B, C
• C, B, A, D, E

Tags

NGSS.MS-ESS1-4

Which layer is the oldest and youngest?

• C and B

• C and E, respectively

• D and E

• A and B

Tags

NGSS.MS-ESS1-4

Which layer is a result of an igneous intrusion?

• B
• C
• D
• E

The geologic time scale is a record of....

• the history of fossils only
• the history of rocks
• the history of rock layers and fossils
• geologist notes

Tags

NGSS.MS-ESS1-4

The picture is an example of...

• trace fossil.
• mineralization.
• original fossil.
• mold fossil.

Tags

NGSS.MS-LS4-1

The picture is an example of .......

• trace fossil.
• carbonization.
• original fossil.
• cast.

Tags

NGSS.MS-LS4-1

NGSS.MS-ESS2-3

The layers in sedimentary rock are also called

• strata
• fossils
• eras
• epochs

Tags

NGSS.MS-ESS1-4

Radiometric age is often referred to as __________ age.

• total
• absolute
• historic
• geological

Tags

NGSS.HS-ESS1-6

Fossils are most common in which rock types?

• sedimentary
• igneous
• metamorphic
• all of these commonly contain fossils

Tags

NGSS.MS-LS4-1