Weathering 1
How is weathering different from erosion?
Weathering and erosion are not the same thing: weathering is the breaking of rocks into smaller and smaller pieces called sediments;
erosion is the movement of these sediments by water, ice, wind, or gravity to a new location.
How does freezing water cause the weathering of rocks? The freezing water—
keeps the rocks in place
makes the rocks last longer
expands cracks and breaks rocks
causes rocks to fall in landslides
Which would most likely increase the erosion caused by a stream?
Increased Rainfall
Decreased animal life
Decreased temperature
Increased Evaporation
Anderson noticed that recent rain had loosened up the dirt in his backyard. As a result, much of the dirt had moved around. There were holes and mounds where the dirt had been level before. This is an example of which of the following?
An earthquake
Weathering
A mudslide
Erosion
Mechanical
Frost or ice
The process by which water, ice, wind or gravity moves weathered rock and soil from one place to another.
weathering
erosion
deposition
dumptruck
Waves dropping sand on the beach is an example of what?
Weathering
Erosion
Deposition
Which type of stream is most likely to cause the greatest amount of erosion?
A slowly moving stream with a small amount of water.
A quickly moving stream with a small amount of water.
A quickly moving stream with a large amount of water.
A slow moving stream with a large amount of water.
Water
Moving across land and making the land change.
Chemical
Hydrolysis H2O reacts with rock
Which of these is an example of erosion?
Light shining onto a mountain.
Rain breaking down rocks on a mountain into smaller pieces.
Wind blowing away sediment to a new place on the mountain.
All of the above.
As you were climbing a mountain, you noticed that rocks were crumbling below your feet and moving down the mountain. What 2 processes did you observe?
Weathering and erosion
Erosion and deposition
How does abrasion change the shape of rocks?
As pieces of rock continue to be weathered by abrasion their shape changes from sharp and pointed to smooth and round.
How is weathering different from erosion?
Weathering and erosion are not the same thing: weathering is the breaking of rocks into smaller and smaller pieces called sediments;
erosion is the movement of these sediments by water, ice, wind, or gravity to a new location.
How does water mechanically weather rocks?
There are two ways that water can mechanically weather rock: 1. water in streams and rivers carries sediments that cause abrasion; 2. water flows into cracks in rocks where it can freeze and cause ice wedging.
Layers of sediment forming at the bottom of the ocean floor is an example of
Weathering
Erosion
Deposition
How are young mountains different from old mountains?
Young mountains are rocky and steep, with sharp, pointed tops, and have high elevations.