How is Soil Formed (Erosion, Weathering, & Deposition)

How is Soil Formed (Erosion, Weathering, & Deposition)

Virtual Science Lab

S3E1.c

I can make observations of my environment to construct an explanation of how water and/or wind have made changes to soil and/or rocks over time.

Weathering, Erosion, & Deposition

Experiment

Open Ended

What happened to the dirt when water was poured down the riverbed? Is this an example of erosion, weathering or deposition?

Answer:

• The water is breaking down the sand riverbanks.

• This is an example of weathering.

• Weathering breaks down rocks.

Let's continue....

An example of erosion will be explained. The process of erosion carries the pieces of broken rock and sand away.

Open Ended

As the water flowed to the bottom of the pan what did you see being carried with it? Was this an example of erosion, weathering, or deposition?

Answer

-As the water flowed to the bottom of the pan I saw broken pieces of rocks and sand.

-This process is called erosion, the carrying away of broken pieces of rocks and sand.

Let's continue...

The process of deposition will be explained. Deposition takes the pieces of broken sand and rock and puts them or deposits them in a new place.

Open Ended

What did you see at the bottom of the tray? Was this an example of erosion, weathering, or deposition?

Answer

-I saw the broken pieces of sand and rock being placed or deposited in a different place.

-This is an example of deposition.

Let's continue...

Are rivers the only cause of weathering, erosion, and deposition? Can you think of any other ways rocks can be weathered, eroded, or deposited? If not let's listen closely.

Open Ended

What other ways from the video did you learn that rocks can be weathered, eroded, and deposited?

Answer...

• Rocks can be weathered, eroded, and deposited by wind, rain, and ice.

Lesson Wrap Up!

-Weathering breaks the rock.

-Erosion takes the rock.

-Deposition drops the rock in a new place.

Poll

How well do you understand the processes of weathering, erosion, and deposition?

• I completely understand the processes of weathering, erosion, and deposition.

• I understand the processes of weathering, erosion, and deposition; however, I need to review the lesson on my own again just to be sure.

• I don't understand the processes of weathering, erosion, and deposition. I need to review the lesson with Mrs. Salley at 1:45 today.