Sedimentary Layers

Open Ended

What do you already know about how layers in sedimentary rocks can tell us about the Earth's past?

Multiple Choice

Why is understanding the formation of sedimentary rocks important in the study of Earth sciences?

• Because it helps us predict volcanic eruptions

• Because it reveals information about Earth's history and environment

• Because it explains how igneous rocks are formed

• Because it shows how minerals are mined

Multiple Choice

Which sediment forms the sedimentary rock shale?

• Sand

• Clay

• Gravel

• Microscopic plankton

Multiple Select

Which of the following are examples of sedimentary rocks?

• Sandstone

• Conglomerate

• Clay

• Limestone

Open Ended

Explain how sedimentary rocks can be formed from the remains of living organisms.

Open Ended

Describe the difference between a stratum and strata in sediment layers.

Multiple Choice

How many strata are shown in the image?

• 3

• 4

• 5

• 6

Multiple Choice

What does the position of sediment layers (strata) tell us about the relative age of the layers?

• The upper strata are older than the lower strata.

• The lower strata are younger than the upper strata.

• The upper strata were deposited after the lower strata.

• All strata are the same age.

Open Ended

How do scientists use objects found in different strata to learn about organisms that lived in the past?

Multiple Choice

Which feature in strata provides evidence of a change in wind direction in ancient environments?

• Ripples

• Cross-beds

• Shellfish remains

• Clay grains

Multiple Select

Which of the following sediments can form sedimentary rocks according to the table?

• Clay

• Gravel

• Sand

• Shellfish remains

Open Ended

What are some ways you can interpret the information found in the layers of sedimentary rocks?