UNIT 6 REVIEW (Weathering, Erosion, and Deposition)

Multiple Choice

If you were explaining the rock cycle to a classmate, how would you distinguish the job of weathering from the job of erosion?

• Erosion breaks apart rock particles, and weathering moves them.

• Weathering breaks apart rock particles, and erosion moves them.

• Weathering takes place only in harsh climates, such as deserts, and erosion takes place in moderate climates, such as forests.

•  Erosion takes place only in harsh climates, such as deserts, and weathering takes place in moderate climates, such as forests.

Multiple Choice

A scientist places sharp bricks into a tumbling machine filled with water and spins it for an hour. When she opens it, the bricks are rounded and there is red dust at the bottom. What Earth process did she simulate?

• The formation of sand dunes

• The effects of weathering

• The formation of deltas

• Sediment erosion

Multiple Choice

A fast-flowing river carries a lot of mud. When this river reaches a calm ocean, the mud settles to the bottom to build a new landform. Why does the mud stop there?

• That is the location of many dams that block the sediment.

• The colder ocean water pushes the sediment away.

• Animals are often at the mouth of the river and cause the sediment to stop.

• The water from the river slows down, allowing the sediment to stop.

Multiple Choice

Three of the options below describe the earth being moved (erosion). Which one describes the earth stopping (deposition)?

• Soil being washed away by rain.
• Rock fragments carried by wind.
• Sand shifting along a beach.
• Sediment settling in a river delta.

Multiple Choice

Imagine you are building a model of a sand dune. You have a pile of dry sand and a rock to act as a wall. What force do you need to add to make the dune form?

• Wind or breeze to move the grains of sand

• A large amount of rainfall to move grains of sand

• A hot, sunny day

• Water pressure

Multiple Select

A tourist notices jagged sea cliffs and smooth sandy beaches on the same coastline. Which two statements explain how these different landforms were produced?(Select 2 that apply)

• Weathering and erosion formed the cliffs.

• Glaciers carved out the cliffs and beaches when they traveled down the coast.

• Volcanoes erupted, and the lava formed cliffs that caused the waves to create beaches.

• Earthquakes over time have broken down rock between the cliffs to form the beaches.

• Deposition, caused by water, formed the beaches.

Multiple Choice

A geologist looks at two photos of the same mountain. In 1900, it was covered in white ice. In 2000, it is a deep, U-shaped valley with piles of rocks. What caused this change?

• Glaciers carved out the cliffs and beaches (valleys) when they traveled down the coast (mountain).

• Human construction altering the terrain.
• Volcanic activity reshaping the landscape.
• Earthquakes