U4 L3: The Flow of Energy Drives Weathering, Erosion and Dep

1. What happens when a stream slows down?

• The stream picks up larger particles.

• The stream has more energy for erosion.

• The stream picks up more sediment.

• The stream deposits sediment.

Tags

NGSS.MS-ESS2-4

The diagram shows the path of a river. Structure A is an oxbow lake, which was originally part of the river.

What are the two main processes that formed this river and lake?

• erosion and deposition

• erosion and chemical weathering

• deposition and physical weathering

• chemical weathering and physical weathering

Tags

NGSS.MS-ESS2-2

What is the process by which a delta forms?

• A stream cuts a new channel during a flood.

• A river overflows its banks and deposits sediment.

• As it enters the ocean, a river slows down and drops its sediment.

• A stream leaves a steep mountain valley, enters a flatter plain, and drops its sediment.

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NGSS.MS-ESS2-4

Which of these is an example of chemical weathering?

• Wind slowly scrapes away small particles of rock

• Water seeps into cracks in rocks, freezes, and expands.

• Plant roots grow into gaps in rocks and force the gaps wider.

• Acid reacts with certain types of rocks causing the rocks to break down.

Which statement best describes the process by which a stream creates a channel?

• The flow of water deposits soil and rock, creating a path for the stream.

• The flow of water erodes soil and rock, cutting a path for the stream.

• Part of a meandering stream is cut off during a flood

• . Gravity causes water to move downhill.

Tags

NGSS.MS-ESS2-2

When glaciers retreat, they leave behind huge blocks of ice and deposited sediments. When these ice blocks melt, they can form kettle lakes surrounded by the sediments. What would likely happen if sediment did not build up around the ice blocks?

• The water in the lake would dry up.

• Vegetation would not be able to grow.

• The water would not stay contained.

• Ice blocks would not be warmed enough to melt.

Tags

NGSS.MS-ESS2-2

Today scientists use a tool called seismic reflection to study the layers beneath the Mississippi River delta. This helps them understand the formation of the delta. They use their observations to reinforce their understanding of how deltas formed earlier in Earth’s history. What conclusion can the scientists draw?

• Deltas did not form in the past.

• In the past, deltas formed differently from the way they form today.

• Deltas formed throughout Earth’s history in the same way they form today

• Scientists cannot draw any conclusions about how deltas formed in the past.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS1-4

What is weathering?

• The process by which

  water, ice, wind or gravity

  moves fragments of rock

  and soil.

• The process by which

  water, ice, wind or gravity

  deposit rock sediments

  and soil in a new place.

• The breaking down of

  Earth’s crust into smaller

  and smaller pieces.

Tags

NGSS.MS-ESS2-2

What is physical weathering?

• Process through which rocks are physically broken into smaller pieces.

• Rocks are broken down through chemical changes.

• Rocks are worn away from acid in plant roots.

• Rocks broken down by machinery.

Tags

NGSS.MS-ESS2-2

How do plants weather rocks?

• during photosynthesis
• when roots grow into cracks of rocks and expand the rock
• when the plant moves water from the roots to the leaves

Tags

NGSS.4-ESS2-1