Mechanical Weathering
Chemical Weathering
Soil
Rocks and Sediment
Erosion
100
The outer layers of rock peel and chip off.
What is exfoliation?
100
This happens when oxygen in the air combines with iron in rocks.
What is oxidation (rust)?
100
Small particles of decayed organic material mixed with rocks and minerals. Found in the O horizon.
What is humus?
100
An area of sediment at the mouth of a river.
What is a delta?
100
When weathered material moves from one place to another.
What is erosion?
200
This occurs when water gets inside a rock or flows beneath a rock and freezes.
What are frost heaving and frost wedging?
200
When carbon dioxide dissolves in water a weak acid is produced that dissolves rock over a long period of time.
What is carbonic acid?
200
The largest particle in soil.
What is sand?
200
An area that commonly floods.
What is a flood plain?
200
The dropping of sediments and rocks in a new location.
What is deposition?
300
Rocks rub together and break into smaller pieces with smooth round edges.
What is abrasion?
300
This is created when sulfer dioxide mixes with water in the atmosphere.
What is acid rain?
300
Soil created when sand, silt and clay are equally combined.
What is loam?
300
The sediment carried by a stream?
What is load?
300
Wind, waves, streams
What are agents of erosion?
400
Wind that erodes soft rock faster than hard rock creates this formation.
What is a hoodoo?
400
These speleothems form as dissolved calcite is deposited out of the water.
What are stalagmites and stalactites?
400
The different layers of soil.
What are soil horizons?
400
A pile of rocks and soil deposited by a glacier.
What is moraine?
400
The primary force behind erosion.
What is gravity?
500
Breaks and cracks in rocks that result when heavy weight is quickly removed.
What is pressure release?
500
Rock is changed into another substance.
What is chemical weathering?
500
A word that describes the amount of each kind of particle in a soil sample.
What is texture?
500
The process of breaking down rocks.
What is weathering?
500
Forms when unmelted snow gets compacted down into ice.
What is a glacier?
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