Water Erosion

What is the process of moving sediments from location to another?

• Deposition

• Erosion

• Weathering

• Compaction

Tags

NGSS.4-ESS2-1

What is sediment?

• the process of rocks being broken down and carried away
• bits of rock, sand, and silt caused by the weathering of rocks
• the top layer of the soil
• decaying plant or animal material 

Tags

NGSS.4-ESS2-1

Look at this picture. How does rainwater cause weathering and erosion?

• Rain can't cause erosion.

• The water breaks down soil and carries it down the river.

• The water eats the soil.

• The water does not carry soil.

Tags

NGSS.MS-ESS2-2

How did the grand canyon form?

• There was a river that, over millions of years, weathered and eroded the earth into a deep canyon.

• The grand canyon was always there.

• There was a river that, over only a few years, weathered and eroded the earth into a deep canyon.

• There was a huge ocean that carved the grand canyon.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

What is a glacier?

• A slow moving river of ice.

• A fast moving river of ice.

• A walking ice berg.

• A huge piece of ice that doesn't move.

Tags

NGSS.MS-ESS2-4

Why do some rocks look like they are made out of layers?

• Because the water breaks them down and makes layers.

• Because water keeps depositing different kinds of soil in the same place.

• Because nature is beautiful.

• Because long ago, some people put different kinds of rock on top of each other.

A loop like bend in the course of a river.

• meander
• oxbow lake
• alluvial fan
• delta

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

A meander cut off from a river.

• alluvial fan
• delta
• flood plain
• oxbow lake

Tags

NGSS.MS-ESS2-2

A wide, sloping deposit of sediment formed where a stream leaves a mountain range.

• flood plain
• delta
• alluvial fan
• gully

Tags

NGSS.MS-ESS2-2

A landform made of sediment that is deposited where a river flows into an ocean or lake.

• delta
• alluvial fan
• flood plain
• oxbow lake

Tags

NGSS.MS-ESS2-2