science quiz 1/15ish
Terms
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- weathering
- the process of breaking down the lithosphere by wind, water, ice, plants, animals, or chemical damages.
- Root pry
- tree roots growing in a crack in a rock. Roots expand and pry rock material loose
- Deposition
- the process of laying the weathered material in a new location.
- Gravity
- landslides move downhill due to the force of gravity, as rocks fall down (cascade) they collide and break into smaller pieces.
- Ice wedging
- water melts and moves deep in the bottom of the crack or hole in rock and freezes so this pushes the rock apart.
- Carbonation
- chemical weathering carbon dioxide dissolves in water, carbonic acid is formed creating chemical changes.
- Mechanical Weathering
- the process by breaking down rock into smaller pieces.
- Exfoliation
- peeling and flaking of rock due to rocks surface cooling at night and warming during the day. The internal temperature of rock does not change.
- oxidation
- chemical weathering combining oxygen with another substance.Example: iron and oxygen equals rust
- abrasion
- the wearing away of solid particles carried by wind, water, or other forces.
- Humic Acids
- plant acids from mosses and lichens that breakdown the mineral composition or chemical make-up of rocks.
- Organic activity
- tree roots growing in a rock, animals burrowing homes, human digging holes, cutting stones, and driving on highways. These are organisms that affect the rock layers.
- Erosion
- the process of carrying away weathered material. Agents (causes) of erosion include; moving water, ice, waves, and wind.