Weathering, Erosion, and Deposition
Weathering can be either _____________ or ____________.
What is chemical or physical?
This is the dropping, or depositing, of sediments by water, wind, or ice.
What is deposition?
The wise use of natural resources is called _______.
What is conservation?
The Grand Canyon was carved from what landform?
The Colorado Plateau.
Deposition
Constructive
Give two causes of erosion.
Wind, water, ice, gravity, human factors
This is anything that harms the natural environment.
What is pollution?
Beach renourishment is an example of ___________.
What is conservation?
The Rocky Mountains are known as what?
The continental divide.
Erosion
Destructive
What are the three key words for weathering, erosion, and deposition?
Break (weathering), move (erosion), and drop (deposition).
This is a fan-shaped deposit at the mouth of a river.
What is a delta?
Planting trees, bushes, or grass can help in which two ways?
- Improve air quality
- Keep erosion from carrying away soil
This is a curve or a loop in a river.
What is a meander?
Floods
Both!
Give at least three examples of physical weathering.
Plant roots, water, changes in temperature, ice forming inside cracks, wind, and anything else that causes rocks to wear down or break apart.
This is the term used to describe processes that break down rocks at or near the surface of the earth, forming soil.
What is weathering?
Give at least three examples of natural resources.
Air, water, trees, rocks and minerals, soil, coal, oil
Give two ways in which increased slope affected landforms on the stream tables.
Deeper canyons, longer deltas, more erosion, more deposition, water had more force
Both!
In a river, explain where deposition is the greatest.
Deposition is greatest where water slows. This happens on the inside of curves and where it enters a large body of water.
Give the definition of a canyon.
a v-shaped valley eroded by a river
All people are encouraged to do three things to conserve natural resources. What are the three things? What should we do with food and yard trash? (4 things total)
Reduce, reuse, recycle, compost
Canyons, deltas, meanders
Earthquakes
Destructive