Unit 6: Weathering, Erosion, and Deposition Review

Base your answer to the following question on the block diagram and the cross section below. The block diagram shows the present position of Niagara Falls in relation to the Niagara Escarpment. The cross section shows the general bedrock structure of present-day Niagara Falls. Which evidence in the cross section of Niagara Falls most clearly shows that erosion is occurring today?

• upper rock units of early Silurian age

• layering of the rock units of the face of the falls

• sand grains within the Grimsby and Whirlpool sandstones

• piles of rock fragments at the base of the falls

Tags

NGSS.MS-ESS2-2

Granite pebbles are found on the surface in a certain area where only sandstone bedrock is exposed. Which is the most likely explanation for the presence of these pebbles?

• The granite pebbles were transported to the area from a different region.

• Some of the sandstone has been changed into granite.

• The granite pebbles were formed by weathering of the exposed sandstone bedrock.

• Ground water tends to form granite pebbles within layers of sandstone rock.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

Base your answer to the following question on the diagram below, which represents the landscape features associated with a meandering river. Letters W, X, Y, and Z represent locations on the floodplain. During transport by this river, a sediment particle will most likely become

• more rounded

• more dense

• heavier

• larger

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

What change will a pebble usually undergo when it is transported a great distance by streams?

• It will become jagged and its mass will decrease.

• It will become jagged and its volume will increase.

• It will become rounded and its mass will increase

• It will become rounded and its volume will decrease.

Tags

NGSS.MS-ESS2-2

Which quartz sample has probably undergone abrasion in a stream for the longest period of time?

• A

• B

• C

• D

Tags

NGSS.MS-ESS2-2

The block diagram represents a landscape that was produced by a meandering stream. One landscape feature is labeled X. Letters A, B, C, and D represent locations on the stream banks. Erosion is most likely greatest at locations

• A and B

• B and C

• C and D

• D and A

Tags

NGSS.MS-ESS2-2

The block diagram represents a landscape that was produced by a meandering stream. One landscape feature is labeled X. Letters A, B, C, and D represent locations on the stream banks. The landscape feature labeled X is best described as

• a flood plain

• a sand bar

• a delta

• an escarpment

Tags

NGSS.MS-ESS2-2

. Sandstone, limestone, and conglomerate cobbles are found in a streambed in New York State where the surrounding bedrock is composed of shales and siltstones. The most likely explanation for the presence of these cobbles is that they were

• weathered from the surrounding bedrock

• formed when shale and siltstone bedrock were eroded

• transported to this area from another region

• metamorphosed from shale and siltstone

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NGSS.MS-ESS2-2

The cross section below represents a portion of a meandering stream. Points X and Y represent two positions on opposite sides of the stream. Based on the cross section, which map of a meandering stream best shows the positions of points X and Y?

• 
• 
• 
• 

Tags

NGSS.MS-ESS2-2

Which cross section best represents the valley shape where a rapidly flowing stream is cutting into the bedrock in a mountainous area?

• A

• B

• C

• D

Tags

NGSS.MS-ESS2-2