Topic 6.1 Determining Ages of Rocks

In the diagram, which layer is the oldest?

• Layer 1

• Layer 2

• Layer 3

• Layer 4

Tags

NGSS.MS-ESS1-4

In the context of geology, relative dating is used to determine:

• The exact age of a rock

• The sequence of events

• The color of a rock

• The mineral composition.

In the Law of Superposition, the lower you go, the ______ the rocks are.

• younger

• older

• same age

• newer

Tags

NGSS.MS-ESS1-4

What is always younger than the rock it cuts through?

• A) A fault

• B) A mineral

• C) A fossil

• D) A sediment

A fault is always ______ than the rock it cuts through.

• older

• younger

• the same age

Tags

NGSS.MS-ESS1-4

What are index fossils used for in geology?

• To identify mineral content

• To match and date rock layers

• To measure temperature changes

• To locate water sources

In the process of folding, what may happen to the youngest rock layers?

• They remain on top

• They may be on the bottom

• They disappear

• They become the oldest.

Tags

NGSS.MS-ESS1-4

In the diagram, what follows after 'Folding bends the rock layer'?

• The surface is eroded

• New sediment is deposited

• The layers become horizontal

• The layers turn into magma.

What does the term 'Folding' refer to in geology?

• The process of rock layers being eroded

• The bending of rock layers due to forces inside the Earth

• The deposition of new sediment

• The formation of magma.

Tags

NGSS.MS-ESS2-2

What is the result of folding rock layers completely over?

• A new rock formation

• An Overturned Fold

• A continuous rock layer

• A gap in the geological record.