Show:
Vocabulary
Mechanical Weathering
Chemical Weathering
Soil
Challenge Questions
100
process that splits rock when water freezes and expands
What is frost wedging?
100
plant roots enter cracks in rocks and force the rocks apart
What is plant growth?
100
rainwater is acidic and breaks or dissolves rocks
What is acid rain?
100
layer of soil with the most bedrock
What is C horizon?
100
Small holes that allow water to seep through easily
What is permeable?
200
process of wearing down and carrying away rocks
What is erosion?
200
rock particles are carried by wind, water, and ice and wear away rock surfaces
What is abrasion
200
plant roots produce weak acids that break down rocks
What is living organisms?
200
layer of soil with some bedrock and subsoil
What is B horizon?
200
decayed organic material in soil
What is humus
300
process of breaking down rocks and other substances
What is weathering?
300
animals burrow in the ground breaking apart rocks
What is animal actions?
300
cause chemical weathering when dissolved in water
What is carbon dioxide?
300
layer of soil with topsoil and the place where plants grow
What is A horizon?
300
___________ carries rocks away and weathering does not.
What is erosion?
400
loose, weathered material on Earth's surface
What is soil?
400
water in cracks of rocks freezing and pushing rocks apart
What is freezing and thawing or frost wedging?
400
weathers rocks by dissolving it
What is water?
400
break up bedrock by burrowing in the ground
What is animals
400
two types of weathering
What is mechanical and chemical?
500
the management of soil to limit destruction
What is soil conservation?
500
outside of rocks crack, break, and release pressure
What is release of pressure?
500
through the process of oxidation, rocks are broken apart
What is oxygen?
500
the best soil for growing most plants
What is humus soil?
500
affects the rate of weathering
What is type of rock and climate?