PhD Science Module 1, Part 1 Study Tool

In what order did these rock layers form? Hint: Start with the oldest layer.

• A, B, C, D

• D, C, B, A

• C, B, A, D

• B, C, D, A

Answer explanation

The oldest rock layer is always at the bottom and the youngest layer is always at the top.

Tags

NGSS.MS-ESS1-4

Here is an image of the results from a solid water(ice) station similar to the one we did in class. What caused the rock to break in the image?

• Strong winds blew small sediments caused the rock to crack.

• A seed sprouted roots in the ground and cracked the rock.

• Water from under the ground froze and expanded, causing the rock to crack.

• Constant precipitation over the years caused the rock to slowly wash away and crack.

Tags

NGSS.MS-ESS2-2

______________ is the process by which rocks are broken down.

• Erosion

• Sediment

• Deposition

• Weathering

Answer explanation

Weathering is the process by which rocks break down by natural forces. These natural forces include plants, moving water, ice and wind.

The Grand Cayon has stayed the same over time.

• True

• False

Answer explanation

The Grand Cayon has changed many times over time. Evidence in the fossil layers reveal that at times it was an ocean, while other times land with rivers/lakes, and sometimes even very dry and desert like.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

___________ is the process by which sediment (broken rock) is moved from one location to another.

• Erosion

• Sediment

• Deposition

• Weathering

Answer explanation

Erosion is the process by which sediment is moved from one location to another.

Tags

NGSS.MS-ESS2-2

What are the natural forces that cause erosion? Select all that apply.

• Plants can cause erosion.

• Gravity can cause erosion.

• Wind can cause erosion.

• Water can cause erosion.

Answer explanation

Erosion is the process by which weather rock (sediment) is moved from one location to another. The natural forces that cause erosion are wind, water, ice, and gravity.

Tags

NGSS.MS-ESS2-4

Which layer is the youngest?

• A

• B

• C

• D

Tags

NGSS.MS-ESS1-4

What are the natural forces that cause weathering? Select all that apply.

• Plants can cause weathering.

• Thunder can cause weathering.

• Moving water can cause weathering.

• Ice can cause weathering.

Answer explanation

Weathering is the process by which rocks break down by natural forces. These natural forces include plants, moving water, ice and wind.

Identify the following as weathering or erosion:

Caves being formed by acid rain dissolving underground limestone.

• Weathering

• Erosion

Answer explanation

Rock is being altered or modified, which is weatehring.

Tags

NGSS.MS-ESS2-2

Identify the following as weathering or erosion:

Rain washing away soil from a hillside.

• Weathering

• Erosion

Answer explanation

Any time sediment (broken rock, sand, soil) is being moved, it is an example of erosion.