2-16 Erosion Prevention

Last updated over 5 years ago

5 questions

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How are dikes and sandabags controlling water in the same way?

They both hold back ice from changing the shape of the land.

They both hold back wind from changing the shape of the land.

They both hold back water from chnging the shape of the land.

Sandbags are used for changes that happen quickly.

Dikes are used for changes that happen quickly.

Dikes

Sandbags

Grasses and flowers look pretty so the wind and water does not bother them.

Grasses and flowers hold down the soil and protect soil from the force of the wind and water.

Water flows from high places to low places.

Water flows up to high places.

Water flows up to the top of high mountains

How are dikes and sandabags controlling water in the same way?

They both hold back ice from changing the shape of the land.

They both hold back wind from changing the shape of the land.

They both hold back water from chnging the shape of the land.

How are dikes and sandabags controlling water differently?

Sandbags are used for changes that happen quickly.

Dikes are used for changes that happen quickly.

Which one would be best for changes that happen slowly?

Dikes

Sandbags

Review:
How do grasses and flowers control erosion?

Grasses and flowers look pretty so the wind and water does not bother them.

Grasses and flowers hold down the soil and protect soil from the force of the wind and water.

Review:
What causes rivers to flow?

Water flows from high places to low places.

Water flows up to high places.

Water flows up to the top of high mountains