Unit 4 Review

Multiple rock layers are necessary in this dating tool

• relative dating

• absolute dating

• online dating

• index fossil dating

According to the Law of Superposition list the ages of rocks from youngest to oldest.

• A,D,B,C

• C,B,D,A

• B,D,A,C

• The Law of Superposition is not seen in the image

Youngest rock layers are found on the _________ .

• bottom

• top

Oldest rock layers are found on the ___________.

• bottom

• top

Rock layers are called __________.

• data

• cake

• strata

• fossils

True or False: Stratigraphy is the study of rock layers.

• True

• False

Which layer is the youngest?

• Layer A

• Layer B

• LAyer C

• Layer D

Which layer is the oldest?

• Layer A

• Layer B

• Layer C

• Layer D

Rock strata is usually formed _________ layers.

• horizontal

• vertical

The ______________________ states that as layers accumulate over time, the rock at the bottom is older than the rock toward the top.

• law of inertia

• law of gravity

• law of superposition