Weathering, Deposition, Erosion Conclusion

Which process describes deltas forming at the mouths of rivers?

• Weathering

• Erosion

• Deposition

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.

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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

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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-ESS2-2

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.

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.

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NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

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.

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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

The movement of sediment by wind, water, ice or gravity from one location to another is know as?

• weathering

• erosion

• deposition

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2