How does water change Earth’s surface?

11/30/18 How does water change Earth’s surface? 15

Your job is to take notes from the PowerPoint.

Deposition in Water The current slows down. Heavy minerals (such as gold) are deposited in water. This is called a placer deposit. How does this cause Earth’s surface to change?

Deposition in Water A river’s current slows down when it empties into a large body of water. This is called a delta. The sediment is deposited in water. How does this cause Earth’s surface to change?

Deposition in Water A stream slows down when it flows onto a flat plain. This is called an alluvial fan. The sediment is deposited on land. How does this cause Earth’s surface to change?

Deposition in Water A river overflows its banks. This is called a flood plain. The sediment is deposited on land. How does this cause Earth’s surface to change?

Time to record what we have learned Police Report Time to record what we have learned Materials: Handout, pencil, and an analytical mind

Crime Scene: Placer Deposit Police report Date: _____________________________________________________ Investigator: _______________________________________________ Crime Scene: Placer Deposit Crime: Changing Earth’s surface   Suspects: Picture: Role in the Crime: Weathering Erosion deposition Breaks rock down into sediment Water carries the pieces away When the current slows down it drops the rock pieces. Crime Scene: Delta Crime: Changing Earth’s surface   Suspects: Picture: Role in the Crime: Weathering Erosion deposition

Crime Scene: Alluvial Fan Crime: Changing Earth’s surface   Suspects: Picture: Role in the Crime: Weathering Erosion deposition Crime Scene: Flood Plain Crime: Changing Earth’s surface   Suspects: Picture: Role in the Crime: Weathering Erosion deposition