1. Weathering, Erosion and Deposition
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2. What is the agent of deposition in this picture?
River
Glacier
Wind
Gravity

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Glacier is correct. The glacier that is in the above picture acts as a bulldozer breaking up and pushing rocks. When the glacier melts, the pile of broken rock is deposited as seen in the bottom picture.
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5. What is the agent of deposition in these pictures?
Water
Glacier
Wind
Gravity

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Wind is correct. The sand dune on the left shows where the wind has blown the sand into a pile. The top right picture shows a sandstone rock face that was created by sand deposited by the wind blowing the sand in different directions.
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8. How was this rock formed?
Water and wind
Glacier and wind
Water and gravity
Glacier and gravity

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Water and wind are correct. The fine sediment was eroded by water or wind across the surface, creating ripple marks.
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11. Conglomerate
What evidence do you see that shows that these rocks were weathered by running water?
There are many rocks
The rocks are deposited on the left in the above picture
The rocks are rounded
The rocks are cemented together in the upper right picture

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The rocks are rounded by the running water carrying small sediment and wearing away the outer part of the rock.
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14. What causes a dust storm?
wind
No vegetation
Wind and no vegetation
Thunderstorms

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A dust storm is caused by strong wind AND no vegetation to hold down the soil.
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17. What are the agents of erosion?
Water and wind
Glacier and wind
Water and gravity
Glacier and gravity

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Wind and water are correct--Layers of different types of rock have been eroded at different rates because some layers are softer than others. This is called differential weathering.
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20. What created the cavern in the limestone to the left, the pits in the limestone rock below left, and the sinkhole in the limestone below?
Mechanical weathering
Physical weathering
Chemical weathering
Abrasion

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Chemical weathering is correct--carbon dioxide in the air dissolves in water making it slightly acidic. The acid reacts with the limestone and creates pits and holes.
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23. Dirt in moving water
Trees and grass growing on the side
ground slumping due to undercut bank
A and C
What evidence of erosion do you see?

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On the left the water is very brown therefore carrying a lot of dirt. When the river slows down the sediment will settle out and deposit in a different location. On the right the stream has undercut the bank, making it unable to support the upper sediment. A section is slumping into the stream channel. These sediments will be eroded away with the next rise in stream level.
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26. What do you notice about the depositional patterns in these two pictures of streamtables?
The sand forms a delta when it meets the body of water
The sand piles up at the top
A channel is formed in the sand
The sand moves faster when it hits the water at the bottom

27. That is not correct. Try again.

28. The sand from the upper part of the stream has eroded away and is deposited at the bottom. This land feature where the sediment deposits is called a delta.
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