Laws of Relative Rock Dating

According to the Law of Superposition, the oldest rock layers are found...

• at the top of the rock layers

• in the middle of the rock layers

• near an intrusion

• always at the bottom of the rock layers

Tags

NGSS.MS-ESS1-4

When you determine the relative age of rock layers, you will use relative dating which is...

• any method of determining whether something is older or younger than something else.

• when magma cools or solidifies under the surface

• when lava cools on the surface

Tags

NGSS.MS-ESS1-4

According to the Law of Superposition which letter represents the oldest layer?

• E

• D

• C

• B

• A

Tags

NGSS.MS-ESS1-4

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

• The white layer could also contain a fossil from the top layer and the bottom layer

• The white layer is younger than the layers above it.

• The white layer is older than the layers above it.

• The white layer is older than the layers below it.

Tags

NGSS.MS-ESS1-4

Is the rock layer with the trilobite fossils older or younger than the rock layers with the dinosaurs fossils?

• older

• younger

• the same age

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

Lava that reaches the surface becomes an extrusion by cooling and solidifying. Will this layer be the oldest layer or the youngest layer?

• oldest layer

• youngest layer

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

Which letter represents an intrusion?

• A

• B

• E

• D

Is the intrusion (letter F) older or younger than the surrounding layers?

• older

• younger

Tags

NGSS.MS-ESS1-4

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

• A, E, B, C, D

• A, D, C B, E

• E, B, C D, A

• E, B, C A, D

Tags

NGSS.MS-ESS1-4

Is the bone fossil older or younger than the intrusion?

• older

• younger

Tags

NGSS.MS-ESS1-4