Weathering
Erosion
Deposition
WED
Soil
100
Examples of this type of weathering include frost wedging, animal/plant actions, abrasion and running water.
What is physical/mechanical weathering?
100
Several things can lead to soil erosion. Which of the following human activities most likely contribute to soil erosion?
-cutting down on the amount of livestock in an area
-planting trees and vegetation
-clearing land for farming
What is clearing land for farming?
100
Some places have loose sand and strong wind. The wind picks up and carries the sand with it. When the sand slows down, it deposits the sand. These landforms are created when this happens.
What are sand dunes?
100
W, E, D? Also-write the key word(s) that told you!
Glaciers scraping rocks amongst the Earth's surface?
What is W(eathering). Scraping
100
This substance that is important to the Earth is a mixture of weathered rock, organic matter, air and water.
What is soil?
200
Lichens, which contain weak acids consist of fungi and algae living together in a symbiotic relationship. These lichen contribute to this type of weathering.
What is chemical weathering?
200
This type of erosion happens due to gravity and is an example of a "mass movement" (and happens very quickly). Rocks are suddenly freed from a steep hill and go sliding down rapidly.
What is a landslide?
200
Deposition is the dropping of sediment by wind, water, ice or gravity. When this happens, new landforms can be created. Because things are being created and not destroyed, we call deposition this type of force.
What is a constructive force?
200
W, E, or D? Write the letter and how you know.
Gravity causing a landslide to take everything in its path.
What is E(rosion) because "in its path" means it's moving.
200
This type of soil is a good mixture of sand, silt and clay; allowing for roots to grow and is the most sought after type of soil for farming/growing plants.
What is loam?
300
Which agent of erosion is responsible for making rocks smooth and rounded in a stream?
What is water (specifically water abrasion)?
300
This "big hole" in Arizona is the result of constant erosion from the Colorado River over millions of years.
What is the Grand Canyon?
300
This is a fan-shaped mass of material deposited by a stream when the slope of the land decreases sharply.
What is an alluvial fan?
300
W, E, or D? Write which one it is and WHY/how you knew.
Rain washing away sand from a sand dune.
What is E(rosion) because the sand is being washed away.
300
This soil horizon contains the least fertile soil (because there is none there) and the least decayed materials (because you rarely see humus this deep down).
What is bedrock.
400
What type of weathering causes caves to form? (Here's a hint-they form because of acids in ground water)
What is Chemical Weathering
400
This agent of erosion causes the greatest amount of erosion.
What is water?
400
This type of landform forms at the mouth of a river where the river meets a large body of water.
What is a delta?
400
W, E, or D? Write which it is and how you know.
Waves hitting the seashore, dropping sand, and forming sand bars.
What is D(eposition) bcause the sand is being dropped and forming new landforms.
400
This diagram shows a ____________________. Each layer of soil is referred to as a ____________.
What is a soil profile? Each layer is called a horizon.
500
These are the 4 main agents of weathering.
What are water, wind, ice and plant roots?
500
Milo wanted to make a model of a river using a tray filled with sand. First, he poured a coup of water into the top of the tray. Then, he poured a bucket of water into the tray. What would Milo most likely see?
The bucket of water would cause more erosion than the cup of water.
500
These are the most likely agents (causes) of deposition. (There are 4)
What are wind, water, ice or gravity?
500
W, E, or D? Write which it is and how you know.
The Colorado River forming the Grand Canyon.
What is E(rosion) because the water is constantly moving.
500
Using your white board, create a soil profile and label it using both the names for each horizon AND the letter that represents them.
