Dating of Rocks and Fossils

Multiple Choice

What assumption does the Law of Superposition make about rock layers?

• The layers have been disturbed.

• The layers have not been disturbed.

• The layers are all the same age.

• The layers are sorted by size.

Multiple Choice

Which layer would be the oldest in an undisturbed sequence of rock layers?

• The topmost layer.

• The middle layer.

• The bottommost layer.

• The second layer from the bottom.

Match

Match the geological process to its meaning

• Tilting

• Folding

• Faults

• Intrusion

When rock layers are pushed up or down due to tectonic forces

The bending of rock layers due to stress

Cracks in the Earth's crust where movement has occurred

When magma is injected and then cools

• When rock layers are pushed up or down due to tectonic forces

• The bending of rock layers due to stress

• Cracks in the Earth's crust where movement has occurred

• When magma is injected and then cools

Multiple Choice

What is the primary use of fossils in geology?

• To decorate museums

• To determine the relative ages of rocks

• To create jewelry

• To predict weather patterns

Multiple Choice

How do fossils help scientists understand past environments?

• By showing current weather patterns

• By indicating past climates and environments

• By revealing future landscapes

• By showing modern ecosystems

Multiple Choice

What is a geologic column?

• A natural rock formation

• An ordered arrangement of rock layers based on relative ages

• A type of mineral deposit

• A mountain range

Multiple Choice

How are geologic columns created?

• By volcanic activity

• By piecing together different rock sequences from different areas

• By erosion

• By sedimentation

Open Ended

What is absolute-dating?