Geology and Index Fossils Quiz

What is the purpose of using index fossils in geology?

• To determine the age of rock layers

• To identify the type of rock

• To measure the thickness of rock layers

• To find the color of rocks

Which layer is considered the oldest in a sequence of rock layers?

• The topmost layer

• The middle layer

• The bottommost layer

• The layer with the most fossils

What is an index fossil?

• A fossil that is found in only one location

• A fossil that is used to identify the age of rock layers

• A fossil that is the largest in size

• A fossil that is the most colorful

Which of the following is used to correlate rock layers?

• Index fossils

• Color of the rock

• Size of the rock

• Shape of the rock

What is the purpose of examining outcrops in geology?

• To determine the color of the rocks

• To find the oldest and youngest layers

• To measure the size of the rocks

• To identify the type of soil

Circle the index fossil.

• Circle the oldest fossil.

• Circle the index fossil.

• Circle the largest fossil.

• Circle the smallest fossil.

Draw a line from the index fossil in outcrop 1 to the index fossil in outcrop II to the index fossil in outcrop III.

• Draw a line from outcrop 1 to outcrop 4.

• Draw a line from outcrop 2 to outcrop 3.

• Draw a line from outcrop 1 to outcrop II to outcrop III.

• Draw a line from outcrop 3 to outcrop 4.

Which three layers are the same age?

• Outcrop 1, Outcrop 2, Outcrop 3

• Outcrop 2, Outcrop 3, Outcrop 4

• Outcrop 1, Outcrop 3, Outcrop 4

• Outcrop 1, Outcrop 2, Outcrop 4

Which is the oldest layer(s)?

• The top layer

• The middle layer

• The bottom layer

• The second layer

Which is the youngest layer(s)?

• The top layer

• The middle layer

• The bottom layer

• The second layer