Erosion Part 2

What is deposition?

• When water or wind picks up sand or rocks and moves them

• When rock is broken down

• When wind breaks down rock

• The the ocean takes over a river

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What are the 2 types of deposition

• water & wind

• wind & earth

• Wind

• water & ocean

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What does water deposition do?

• forms deltas at the mouth of a body of water

• forms rivers and streams

• blows away rock and sediment

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What does wind deposition do?

• pick up dirt and rock and drops it off in another place

• erodes away land

• breaks apart rocks little by little

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What is a delta?

• a triangle

• wetlands that form as rivers empty their water and sediment into another body of water

• a new stream that forms

• something that always empties into the ocean

Pick 3 that a delta can empty into.

• ocean

• lake

• into another river

• pond

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When you are at the beach, what is the sand doing to the water? (as seen in the second video Erosion as the Ocean)

• it is absorbing the water

• it is pushing the water away

• it is evaporating the water

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As seen in the 3rd video, what happened to the mud?

• it was eroded and broken down by the waves

• it stayed strong and kept its form

• it clumped together

• it stuck to the bottom

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NGSS.MS-ESS2-2

As seen in the first video, with the drone flying into the cave. How do you think that cave got all of its stalagmites, stalactites, curves and twists?

• the sandstone was so weak that it just started to break apart

• the wind blew ALL of the rock away

• over time, ground water eroded away the rock.

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NGSS.MS-ESS2-2

In the video on slide 12 "Erosion in 3 different types of soil", Which water was the cleanest?

• the one with grass

• the one with soil

• the one with leaves

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NGSS.MS-LS2-4