Grand Canyon
Investigation 2.1
Investigation 2.2
Investigation 3
Map Skills
100
What river runs through the Grand Canyon?
What is the Colorado River
100
What do we call the process of wearing away earth material by wind, water or ice
What is erosion
100
What do we call the process by which eroded earth materials settle out in another place?
What is deposition
100
What do we call the angle or slant of a stream channel or land surface?
What is slope
100
What do we call the top of a mountain
What is the peak
200
What is a canyon?
A v-shaped valley eroded by a river or stream
200
What do we call the fan-shaped deposit of earth materials at the mouth of a stream?
What is a delta
200
What do we call the eroded earth materials that have been deposited?
What are sediments
200
This is a fan-shaped landform deposited at the end of a steep canyon where the slope becomes flatter
What is an alluvial fan
200
What two things does a topographic map show?
Elevation and the shape of the land
300
How do scientists think the Grand Canyon was formed?
water flowing in the Colorado River eroded the canyon
300
What natural processes or features of the land can increase the amount of erosion on the Earth's surface?
Increased slope, flash flood, etc.
300
What is the low area in which sediments are often deposited called (this was the empty tray section of our stream tables)?
What is a basin
300
What differences did you observe in the landforms when the slope was increased (3 things)
The canyons were deeper; the deltas were larger and longer
300
This is the vertical distance, or height, above sea level
What is elevation
400
What happens to the material that is eroded by the Colorado River?
it is carried downstream by the water and deposited in a delta at the end of the river
400
What is a large, nearly level area that has been lifted above the surrounding area?
What is a plateau
400
What is the course or path the water takes in a stream or river called?
What is channel
400
How did the slope affect the time it took for landforms to appear?
Material eroded faster in teh slope tray, so the canyon took less time to form
400
What is a contour line?
Lines on a topographic map that connect points of equal elevation
500
What happens to the Grand Canyon during a flash flood?
The canyon would have more erosion and particles would be carried further down the river.
500
What is a system of rivers and streams that drains on an area like the Colorado Plateau.
What is a drainage basin
500
What do we call a curve or loop in a channel?
What is a meander
500
What differences did you notice in the landforms when you used the flood water source? (at least 2 answers)
The canyons were wider; the deltas were larger and longer (more material eroded)
500
If the following contour lines were on a map (0 ft., 400 ft., 800 ft., 1200 ft., 1500 ft.), what would the contour interval be?
What is 400 feet
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