Weathering, Erosion, and Deposition

Weathering, Erosion & Deposition

Review

Weathering

-Breaks rocks apart

-Usually happens very slowly

-Agents of weathering include wind, water, ice, plant roots, gravity

-Creates sediment

Erosion

-Moves sediment

-Can happen quickly or slowly

-Agents of erosion include wind, water, ice (glaciers), gravity

Deposition

• Drops eroded sediment off in a different place
• Occurs when water slows down
• Results in the formation of a delta at the mouth of a river

Multiple Select

Check all of the agents of weathering.

• wind

• water

• gravity

• ice

Multiple Choice

When camping in west Texas, we wake one morning to discover that our car and tent are covered with a thin layer of sand. This is an example of:

• weathering

• erosion

• deposition

Multiple Choice

A beautiful display of bluebonnets bloomed along the bank of the river, but after the storm last night, the flowers and a large section of the soil in which they grew is gone. What is this an example of?

• weathering

• erosion

• deposition

Multiple Choice

When we walk along the seashore, we look for shark teeth in the sand. Sometimes we also find unbroken sand dollars, too. This is an example of

• weathering

• erosion

• deposition

Multiple Choice

This landform is created by deposition.

• mountain

• volcano

• delta

• mid-ocean ridge

Multiple Choice

As a river approaches the ocean, the water speed __________ and sediments are ______________.

• increases; deposited

• decreases; weathered

• decreases; weathered

• decreases; deposited

Multiple Choice

How does freezing water cause the weathering of rocks?

• It keeps the rocks in place.

• It expands cracks and breaks rocks.

• It makes the rocks last longer

• It causes rocks to fall in landslides

Fill in the Blank

Which process breaks rock into sediments?

Fill in the Blank

Which process moves sediment from its original location to another location?

Fill in the Blank

Which process drops sediment off in a new location?

Poll

How are you feeling about the content we learned this week?

• Great! I could explain it to someone else easily.

• Getting there! I feel ok about this information but need some more practice.

• Not great yet, but I know that once I complete my assignments this week I'll be comfortable with the material.

• Not good at all. Help me!!