Review

Weathering is the process that—

• moves sediments from place to place

• breaks rock down into smaller pieces

• builds new landforms from deposited sediment

• removes water from the Earth’s surface

Which of these materials will erode the most during a strong wind?

• Sand in a desert

• Pebbles near a river

• Soil under a grassy field

• Boulders on a mountainside

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NGSS.MS-ESS2-1

A scientist found a large rock wedged on the bank of a rushing river. Twenty years later, he went back and found the same rock. What might be one difference he notices about the rock now?

• It is larger than it was

• It is composed of different things

• It is the exact size it was 20 years ago

• It is worn down where the water touches it

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NGSS.MS-ESS2-2

The diagram shows the land surface changes caused by a river flowing through an area for many years (left is before and the right is after). Which of the following processes MOST LIKELY caused the changes shown?

• Condensation

• Erosion

• Evaporation

• Rotation

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NGSS.MS-ESS2-2

The depth of the pond in the pictures has decreased slowly over several years. Which of the following processes MOST LIKELY caused the changes shown?

• Soil erosion

• Crust faulting

• Water evaporation

• Rock formation

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NGSS.MS-ESS2-4

Mount Rushmore is in South Dakota. This statue was carved more than 60 years ago. The faces on this granite statue are slowly wearing away. Which natural process causes this wearing away?

• Earthquakes

• Water from floods

• Blowing wind and rain

• Lava flowing from volcanoes

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

The diagrams show a natural process that weathers rock.

Which statement best explains why this process results in weathering?

• Frozen water acts as a solute

• Water expands when it freezes

• The mass of water increases when it freezes

• Frozen water dissolves most types of rocks

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

Which of these changes would MOST LIKELY take the longest time to occur?

• A rock changing into sand

• Winter changing into spring

• Dead leaves changing into soil

• A caterpillar changing into a butterfly

Weathering is a process that breaks up rocks and destroys existing landforms. What is the mixture of broken rocks, soil, and other small bits of eroded materials that weathering produces called?

• Earthquakes

• Glaciers

• Rock layers

• Sediments

Tags

NGSS.MS-ESS2-2

Three of the landforms shown are formed mainly by weathering, deposition and erosion. Which landform is NOT formed by weathering, deposition, and erosion?

• Mountain

• Delta

• Canyon

• Valley

Tags

NGSS.MS-ESS2-2