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Vocabulary
Vocabulary
Flood
Slope
Bonus
100
an embankment along a stream that protects land from flooding. They can be natural or constructed
What is levee?
100
The area around a river that is covered by water flowing over the riverbank during a flood.
What is flood plain?
100
In the stream-table experiment, which of these can increase the amount of erosion and deposition? a. use more water b. use less water c. make the slope flatter d. put a barrier in the water's path
What is use more water?
100
In the stream-table experiment, which of these can increase the amount of erosion and deposition? a. flatter slope b. steeper slope c. use less water
steeper slope
100
What differences did you observe in the landforms when you used the flood water source?
The canyons were wider and straighter; the deltas were larger and longer. More material eroded.
200
A very heavy flow of water, which is greater than the normal flow of water and goes over the stream's normal channel.
What is flood?
200
This rises and falls rapidly with little or no advance warning, usually as the result of very heavy rainfall over a relatively small area. They can be caused by sudden heavy rainfall, dam failure, or the thaw of an ice jam.
What is flash flood?
200
What differences did you notice in the landforms when you used the flood water source instead of the standard water source?
Erosion and deposition occurred faster, channels were straighter, wider canyons, larger hole under the water source, and earth materials were carried farther downstream.
200
What difference did you observe in the landforms when the slope increased?
Erosion and deposition occured faster, longer wider deltas, wider and deeper canyons, and earth materials traveled farther downstream.
200
What do you think happens to flood waters when they reach another body of water like a lake?
The water slows and mateiral is deposited. A delta is formed.
300
The angle or slant of a stream channel or land surface.
What is slope?
300
when earth or rock is worn away by water, wind, or ice.
What is erosion?
300
How does the amount of time it takes for erosion and deposition differ between the flood and standard stream table?
Erosion and deposition occur faster in the flood stream table.
300
How does the amount of time to observe erosion and deposition differ between the slope and standard stream table?
Erosion and deposition occur faster.
300
What might happen in the Grand Canyone when there is a flash flood?
More eosion might occur. The canyon might become deeper.
400
A construction or wall across a river that is covered by water flowing over the riverbank during a flood.
What is dam?
400
The process by wich eroded earth materials settle out in another place.
What is deposition?
400
Describe a career in which a person might use his/her knowledge about erosion.
Answers may vary.
400
How did slope affect the time it took for the landforms to appear?
Material eroded faster in the slope tray, so the canyon took less time to form.
400
Write a conclusion for the slope investigation. Make sure to: * answer the question * lowest supporting data * highest supporting data * conclusive statement
Slope affects erosion and deposition by speeding it up and causing more of it to happen. My lowest supporting data is that in the standard set up the canyons were smaller, the deltas were also smaller, and it took more time for the canyons and deltas to be created. My highest supporting data is that in the slope stream table the canyons were wider and deeper, the deltas were wider and longer, and the canyons and deltas were formed faster. Therefore I know that slope caused more erosion and deposition in a shorter period of time.
500
a fan-shaped landform deposited at the end of a steep canyon where the slope becomes flatter. These are usually found in arid regions, like Death Valley.
What is alluvial fan?
500
a triangle of earth deposited at the mouth of a stream or river.
What is a delta?
500
Allyson was very interested in the results of the investigations in the stream table. She had read about a flash flood on a river flowing through a steep canyon in Colorado several years ago. The flood caused quite a bit of damage to property and loss of lives. She wondered how she might set up an investigation in the stream table to find out what effect flooding would have on a astream with a steep slope. What advice can you giver her about setting up her investigation? How will she know what changes were caused by flooding?
Allyson will be stesting slope and flood. The procedure is: 1. run a standard stream table or use the record of the standard used in class. 2. Run a stream table with a slope and record the data. 3. Run a stream table with flood and record the data. 4. Run a stream table with slope and flood conditions and record data. 5. Repeat steps 1-4 two more times. Allyson can determine the changes by comparing the records of her stream table runs.
500
One morning on his way to school. Jose noticed a fan-shaped pile of sand covering part of the sidewalk. It wasn't there the day before, and he wondered how it got there. He made a list of clues to help him solve the mystery. These are his clues: 1. It rained really hard last night. 2. They are digging he basement for a new house on the land next to the sidewalk where I found the sand. There's a big pile of sand that they dug out. 3. When I look closely at the sand, I noticed that there is some clay along the edges of the fan farthest from the basement. What ideas do you have for how the fan of sand got on the sidewalk? Make sure to use evidence to answer your question.
When it rained hard the night before on the pile of sand erosion and deposition took place. The water eroded canyons into the sand and then deposited the sand on the sidewalk. The clay that was in the sand was carried farther and therefore deposited on the edges of the fan farthest from the basement.
500
Write a conclusion for the flood investigation. Make sure to: * answer the question * lowest supporting data * highest supporting data * conclusive statement
Using the flood water source causes more erosion and deposition to happen faster. My lowest supporting data is that in the standard set up had smaller canyons and deltas, and took longer to form. My highest suppporting data is that in the flood stream table canyons were deeper, deltas were larger, and canyons and deltas were formed faster than the standard. Therefore I know that the flood water source causes more erosion and deposition to happen faster.