In the 1930s, several years of drought affected over 100 million acres in the Great Plains from North Dakota to Texas. For several decades before this drought, farmers had plowed the prairie and loosened the soil. When the soil became extremely dry from lack of rain, strong prairie winds easily removed huge amounts of soil from the farms, forming dust storms. This region was called the Dust Bowl.

In the spring of 1934, a windstorm lasting a day and a half created a dust cloud nearly 2000 kilometers long and caused "muddy rains" in New York State and "black snow" in Vermont. Months later, a Colorado storm carried dust approximately 3 kilometers up into the atmosphere and transported it 3000 kilometers, creating twilight conditions at midday in New York State.

Identify the name of the layer of the atmosphere in which the dust particles were transported by the Colorado storm to New York State.

USE ESRT p 14

In the 1930s, several years of drought affected over 100 million acres in the Great Plains from North Dakota to Texas. For several decades before this drought, farmers had plowed the prairie and loosened the soil. When the soil became extremely dry from lack of rain, strong prairie winds easily removed huge amounts of soil from the farms, forming dust storms. This region was called the Dust Bowl.

In the spring of 1934, a windstorm lasting a day and a half created a dust cloud nearly 2000 kilometers long and caused "muddy rains" in New York State and "black snow" in Vermont. Months later, a Colorado storm carried dust approximately 3 kilometers up into the atmosphere and transported it 3000 kilometers, creating twilight conditions at midday in New York State.

Identify one human activity that was a major cause of the huge dust storms that formed in the Great Plains during the 1930s.

The map shows a retreating valley glacier and the features that have formed because of the advance and retreat of the glacier.

Describe the most likely shape of the valley being formed due to erosion by this glacier.

The map shows a retreating valley glacier and the features that have formed because of the advance and retreat of the glacier.

Describe one difference between the arrangement of sediment in the moraines and the arrangement of sediment in the outwash plain.

The map shows a retreating valley glacier and the features that have formed because of the advance and retreat of the glacier.

Describe one piece of evidence likely to be found on the exposed bedrock surfaces that could indicate the direction this glacier moved.

Match this erosional agent to the depositional feature formed

WIND

Match this erosional agent to the depositional feature formed

Glacier

Match this erosional agent to the depositional feature formed

Ocean Currents

The map shows the area where the Battenkill River flows into the Hudson River north of Albany, New York. PointA indicates a location within the Battenkill River. The table shows the densities of four common minerals found in Hudson River sediments.

Describe the arrangement of the sediments being deposited by these rivers.

The map shows the area where the Battenkill River flows into the Hudson River north of Albany, New York. PointA indicates a location within the Battenkill River. The table shows the densities of four common minerals found in Hudson River sediments.

Identify the diameter of the largest particle that would be carried at point A when the velocity of the Battenkill River is 50 cm/s.

The diagram represents a meandering stream flowing into the ocean. Points A and B represent locations along the streambanks. Letter C indicates a triangular-shaped depositional feature where the stream enters the ocean.

Identify the triangular-shaped depositional feature indicated by letter C.

The diagram represents a meandering stream flowing into the ocean. Points A and B represent locations along the streambanks. Letter C indicates a triangular-shaped depositional feature where the stream enters the ocean.

Explain how sediments eroded by the water in this stream become smoother and rounder in shape.

The diagram represents a meandering stream. Point A represents a location within the meandering stream. Arrows represent the direction of stream flow.

Identify the name of the largest sediment particles that can be transported at point A when the stream's velocity is 100 cm/s. USE ESRT PAGE 6

The symbols representing four sediment particles are shown in the key below. These particles are being transported by Sandy Creek into Lake Ontario.

In what order would these sediments be deposited at the bottom of Lake Ontario beginning where Sandy Creek enters Lake Ontario? Use ESRT page 6