Did you enjoy learning about the changes to our Earth?

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NGSS.K-ESS2-2

What is erosion?

• When sand, soil, and rock are removed

• An area that slants up or down

• The breaking up of rock

• When wind and water drop sand and soil in a new place

Answer explanation

Erosion is the process where sand, soil, and rock are removed from one location, often by wind or water, and transported elsewhere. This makes the first choice the correct definition of erosion.

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NGSS.2-ESS2-1

What is a slope?

• An area that slants up or down

• The breaking up of rock

• When wind and water drop sand and soil in a new place

• A way to compare the distance between objects on a map

Answer explanation

A slope refers to an area that inclines or declines, indicating a change in elevation. This makes 'An area that slants up or down' the correct choice, as it directly describes the concept of a slope.

What is deposition?

• When sand, soil, and rock are removed

• An area that slants up or down

• When wind and water drop sand and soil in a new place

• The breaking up of rock

Answer explanation

Deposition is the process where wind and water transport sand and soil, eventually dropping them in a new location. This distinguishes it from erosion, which involves the removal of materials.

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NGSS.MS-ESS2-2

What is weathering?

• When sand, soil, and rock are removed

• The breaking up of rock

• An area that slants up or down

• A way to compare the distance between objects on a map

Answer explanation

Weathering refers to the breaking up of rock into smaller pieces due to various processes like temperature changes, water, and biological activity. This distinguishes it from erosion, which involves the removal of materials.

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NGSS.2-ESS1-1

What should a farmer do to stop soil from blowing away?

​ Choose 2 answers.

• Give up farming.

• Cover soil with a blanket.

• Build a windbreak. to protect plants and soil.

• Plant plants to keep soil from blowing away.

Answer explanation

To prevent soil from blowing away, a farmer should build a windbreak. Windbreaks act as barriers that reduce wind speed, protecting the soil from erosion.

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NGSS.MS-ETS1-3

NGSS.MS-LS2-5

Which are slow change to the earth? Choose all.

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NGSS.K-ESS2-2

How are mountains formed? Choose 2 answers.

• Slow changes over millions of years.

• Flooding of the land.

• The Earth's crust pushing upward.

• Landslides.

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NGSS.2-ESS1-1

Sort the slow and fast changes to the earth.

Groups:

(a) Fast Changes

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(b) Slow Changes

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NGSS.2-ESS1-1

Rivers contain salt water.

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