Vocabulary
Weathering
Erosion
True/False
Causes of Weathering and Erosion
100
The breaking apart, wearing away, or dissolving of rock.
Weathering
100
How does water weather rocks?
The water carries pieces of sediment that rub against the rocks and weather them.
100
A glacier carries sediment to a new location and leaves it behind as the ice melts away is an example of...
Erosion.
100
Wind blowing sand from one place to another is an example of weathering. (If false, make the sentence true.)
False. Wind blowing sand from one place to another is an example of erosion.
100
Can form deltas, is an example of....
Erosion by Water.
200
The moving of sediment and rock from one place to another.
Erosion.
200
Describe abrasion by wind and water.
Wind and water carry sediment and bump it againt rocks, wearing the rock away and making it round and smooth.
200
What comes first, weathering or erosion?
Weathering.
200
Water getting into cracks, freezing, and breaking the rocks or pavement is an example of erosion.
False. Water getting into cracks, freezing, and breaking the rocks or pavement is an example of weathering.
200
Forms till, called moraines is an example of...
Erosion by Ice.
300
Material that comes from the weathering of rock.
Sediment.
300
How are weathering by plants and ice similar?
Both get inside a crack in the rock and expand, or grow.
300
How do you think the size of sediment eroded by wind compares to that eroded by glaciers?
Glaciers can erode much larger pieces of sediment that wind can.
300
Flood waters moving soil from one location to another is an example or erosion.
TRUE!
300
The Colorado River from the Grand Canyon is an example of....
Weathering by Water.
400
The scraping away of materials.
Abrasion.
400
Which of these best describes the result from weathering by a fast-moving river? A. Smooth, rounded rocks B. Large Rocks. C. Rocks with jagged edges. D. Sand moves farther downstream.
A. Smooth, rounded rocks.
400
How are weathering and erosion different?
Weathering causes rocks to break into small pieces, and erosion carries these pieces away.
400
Rain washing away soil from a hillside is an example of weathering.
False. Rain washing away soil from a hillside is an example of erosion.
400
U-shaped Valleys are formed by....
Erosion by glaciers.
500
A process that changes the minerals that make up rocks.
Chemical Weathering.
500
Eden's grandparents have a beach house. When Eden was little, she had to walk a very long way in the sand to get from the sidewalk to the water. Now the water is almost up to the sidewalk. What most likely caused this change?
The crashing waves slowly eroded the sand on the beach.
500
Wind blasting sand at rock and carving out arches is an example of abrasion.
TRUE!
500
What are erractics?
Large boulders deposited by glaciers.