Unit 8 Corrections

Natural land formations can be found all over the United States.

What most likely caused the rock formation in the image?

• glaciers

• wind

• water

• volcanic erruption

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NGSS.MS-ESS2-2

A large volcanic eruption can produce a cloud of ash that can impact the world's climate for some time. A cloud of ash that blocked out the sun for four months would MOST LIKELY have which of these effects?

• higher temperatures on Earth and increased rates of photosynthesis

• large amounts of precipitation and flooding of coastal areas

• lower temperatures and slower rates of plant growth

• high rates of extinction among reptiles and amphibians

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Tags

NGSS.MS-ESS2-6

NGSS.MS-ESS3-2

Which is NOT an example of weathering of rocks?

• tree roots growing in a fractured rock

• Formation of a delta

• ice freezing on a rock surface

• wind blowing sand against a rock surface

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Karen bought a birdbath made of poured concrete. The salesman suggested that she seal the surface with a watertight solution.

Why was this suggestion made?

• In cold, wet weather, water seeping into the concrete would freeze and cause the birdbath to crack.

• The watertight solution would slow the evaporation of water during periods of warm weather.

• Over time rainwater would react with the surface of the concrete and deposit a mineral layer over the carved areas.

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A delta at the mouth of a river is the direct result of

• runoff from sewage.

• an underground river flowing to the ocean.

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• an ancient glacier that passed through.

• deposition of sediment.

Tags

NGSS.MS-ESS2-2

A volcanic eruption covers a wide area of forest with ash, lava, and volcanic rock.

Which of these describes the first stage of ecological succession that will begin to return biotic factors to the forest community and return it to a state of equilibrium?

• The rocks melt back into lava.

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• Lichens grow on the rocks.

• The lava cools to form rock.

• The volcano stops erupting.

John was changing the oil in his truck. He dumped the used oil around a fence post to keep weeds from growing. John didn't know it, but he was hurting the environment because the oil

• attracts more insects that will take over his yard

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• goes deep into the ground and pollutes the groundwater

• rots the base of the fence post and attracts harmful insects

• kills weeds and they are an important part of the environment

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NGSS.MS-ESS3-3

A company known as Arten Industries is wanting to build a factory in the watershed that is pictured.

The company wants to limit the ecological impact it has on surrounding areas.

What would be the worst location for the factory?

• At the bottom of the river.

• At the middle of the river.

• At the top of the river.

• Away from the river.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS3-4

A river in Texas starts at a natural spring of water. The spring water bubbles up into an area that is used as a swimming pool and then flows into a river a few miles away. Eight million gallons of water flow out of the spring every hour.

What is the relationship between the spring and the river?

• The water from the river is groundwater that joins the surface water of the spring.

• The water from the river and spring are both examples of ground water.

• The water from the river and spring are both examples of surface water.

• The water from the spring is ground water that joins the surface water of the river.

Tags

NGSS.MS-ESS2-4

Which statement describes MOST groundwater?

• Groundwater is found in the spaces between rocks, gravel, and sand. 

• Groundwater is sequestered below the surface for years or decades at a time. 

• Groundwater is found in underground lakes, rivers, and streams. 

• Groundwater is isolated from surface water and moves in its own cycle.

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NGSS.MS-ESS2-4

NGSS.MS-ESS3-1