Relative Age Dating and Geologic Principles Worksheet

What is the main learning target for today’s lesson?

• Learning about the solar system

• Learning about relative age dating

• Learning about chemical reactions

• Learning about world history

How can geologic principles help scientists interpret rock sequences?

• By using them to determine the relative age of rocks

• By ignoring the rock layers

• By only studying living organisms

• By focusing on weather patterns

Relative dating does NOT provide which of the following?

• The order of events

• The actual age in years

• Which rock is older

• Comparison between rocks

What does the Law of Superposition help scientists determine about sedimentary rock layers?

• The exact age of each layer

• The relative ages of rock layers

• The chemical composition of rocks

• The weather patterns during deposition

If you find a sequence of undisturbed sedimentary rock layers, how would you use the Law of Superposition to identify the oldest layer?

• The oldest layer is at the top

• The oldest layer is in the middle

• The oldest layer is at the bottom

• The oldest layer is randomly placed

Why do scientists study deeper rock layers to learn about the past?

• Deeper layers contain more recent fossils.

• Deeper layers are easier to access.

• Deeper layers represent older periods in Earth's history.

• Deeper layers are always made of the same material.

According to the Law of Superposition, where are the youngest rock layers found in the Grand Canyon?

• On the top

• In the middle

• On the bottom

• Scattered randomly

Based on the image provided, which rock layer is the oldest?

• Layer E

• Layer D

• Layer B

• Layer A

If a fossil is found in layer C, what can you infer about its relative age compared to fossils in layer D?

• The fossil in layer C is younger than the fossil in layer D

• The fossil in layer C is older than the fossil in layer D

• The fossil in layer C is the same age as the fossil in layer D

• The fossil in layer C is from a different planet

What is a reason that not all rock sequences have the oldest layers on the bottom and the youngest on the top?

• Disturbances

• Erosion

• Weathering

• Volcanic eruptions