Earths Changing Surface Flashcards
Erosion
Process that move sediment from one place to another
Deposition
The laying down of sediment that has been eroded
4 types of weathering
Water, wind,glaciers,Gravity
Examples of wind erosion
Tornadoes wind storms
Examples of water
Steam erosion Grand Canyon wave and beach erosion and raindrop erosion which is an issue on farms
Examples of deposition
Landforms called deltas where rivers flow into other bodies of water
Waves dropping sand on beach
Glaciers
Layers of sediment forming at the bottom of the ocean
Examples of erosion
Wind blowing sand from one location to another
Muddy water being carried away by a fast moving river
A mudslide flowing down a steep hill
Glaciers scraping rocks across the earths surface
Examples of weathering
Rain washing away soil from a hillside
Flood water pounding against a canyon wall and wearing it down
Water getting into cracks, freezing and breaking the rocks apart
Wind blowing ricks together forming smaller rocks
The two types of weathering
Mechanical-physical change freeze and thaw of water
Chemical-acid rain plant acid
Is weathering destructive or constructive
Destructive
Is deposition deconstructing or constructive
Constructive
Is erosion deconstructing or constructive
Deconstructive
What is a contour interval
The space between the contour lines on a map scale
What is an index interval
The steepest part of the slope
What is relief
The difference between high and low elevations
What is a benchmark
A location whose exact elevation is known and is noted on a brass or aluminum plate
What is a map scale
Indicates the distance on the map compared to distance in the real world
What is a topographic map
A two-dimensional model of the earths surface
What are contour lines
Connects points of equal elevation
Are all contour intervals the same difference
Yes
What is a contour interval
The difference in elevation between each line
What is a benchmark marked with on a map
An X or BM
What are contour maps
It represents a three-dimensional world
Rules for contours
Never cross
Formed closed loops
Band upstream
