Shared Flashcard Set

Details

plate tectonics
Earth science
20
Science
7th Grade
02/03/2011

Additional Science Flashcards

 


 

Cards

Term

Erosion

Definition

the removal of rock particles by wind ice or gravity

Term

Weathering

Definition

Breaks down rock and other substances at earths surface

Term

mudflows

Definition

rapid downhill movement of a mixture of water,rock,and soil

Term

slump

Definition

a mass of rock and soil suddenly slips down a slope

Term

landslides

Definition

occurs when rock and soil slide quickly down a steep slope

Term

reep

Definition

very slow downhill movement of rock and soil

Term

mechanical weathering is:

Definition

freezing and thawing

release of pressure

plant growth

actions of animals

abrasion 

Term

chemical weathering includes:

Definition

actions of water

actions of oxygen

actions of carbon dioxide

actions of living organisms

actions of acid rain

Term

abrasion

Definition

the grinding away of rock by other rock particles carried in  water,ice,or wind

Term

Moving water

Definition

the major cause of the erosion process that has shaped earth's surface

Term

Soil is...

Definition

mixture of rock particles,minerals,decayed organic material,water and air 

Term

Sediment

Definition

the eroded material that is carried by water or wind

Term

Convergent Boundary

Definition

the boundary between plates moving togeher

Term

Divergent Boundary

Definition

the boundary between two plates moving apart

Term

Transform Boundary

Definition

the boundary where plates slide past one another(at the same or opposite directon at different speeds)

Term

Convection Current

Definition

the cycle of heating,rising ,cooling,and sinking of hot plastic like rock in the mantle that creates a current that moves the plates

Term

Continental Drift

Definition

theory that the continents have drifted slowly to there current location

Term

The evidence of continental drift

Definition

Fossil clues

Climate clues

Rock clues

Term

plate movement

Definition

earth's crust and part of the upper mantle is broken into sections. thes sections,called plates,move on a layer of the mantle

Term

 Hot Spots

Definition

hot spots are large rising bodies of magma that are forced through earths mantle and crust.(they don't occur on plate boundaries)

Supporting users have an ad free experience!