Lesson 3: Erosion and Deposition by Water

What is the definition of erosion?

• Material, rock, or sediment being transported (moved) from one place to another

• Material, rock, or sediment being broken down

• Material, rock, or sediment being dropped or stops moving

Tags

NGSS.MS-ESS2-4

What is the definition of deposition?

• Material, rock, or sediment being transported (moved) from one place to another

• Material, rock, or sediment being dropped or stops moving

• Material, rock, or sediment being broken down

Gradient in a river or stream is mainly focused or mainly talks about

• the measure of change in elevation over time (steepness of the river)

• the size of the material, sediment, or rocks being carried by the stream

• the amount of water in a stream at a given time

• the rock's grade type and rarity

Load in a river or stream is mainly focused or mainly talks about

• the measure of change in elevation over time (steepness of the river)

• the size of the material, sediment, or rocks being carried by the stream

• the amount of water in a stream at a given time

• the rock's grade type and rarity

Tags

NGSS.MS-ESS2-4

Discharge in a river or stream is mainly focused or mainly talks about

• the measure of change in elevation over time (steepness of the river)

• the size of the material, sediment, or rocks being carried by the stream

• the amount of water in a stream at a given time

• the rock's grade type and rarity

Tags

NGSS.MS-ESS2-4

During a heavy rainstorm or a hurricane, an area may receive a lot of rain. Eventually, this water may flow towards a river or stream. This will cause an increase in a river or stream's _________________.

• Discharge

• Gradient

• Load

• None of the above

Mount Mr. Mac has a very steep mountain side with a river compared to Mount Ms. Romero who has a mountain side that is not as steep. Compared to Mount Ms. Romero, Mount Mr. Mac has a higher ______________.

• Discharge

• Gradient

• Load

• None of the above

The Mac River has large boulders or large rocks that are heavy, big, and hard to move. The Cofinco River has rocks that are smaller in size like pebbles. Compared to The Cofinco River, The Mac River has a larger ___________.

• Gradient

• Discharge

• Load

• None of the Above

If the gradient of a stream (the steepness of a stream) increases, the water in the stream is likely to move faster. In this scenario, will the stream be likely to erode more or erode less?

• The stream will erode more

• The stream will erode less

Tags

NGSS.MS-ESS2-2

If the load of a stream (the size of the sediment or rocks) increase, that may mean that the water in the stream is moving faster and able to move bigger rocks. In this scenario, will the stream be likely to erode more or erode less?

• The stream will erode more

• The stream will erode less