Shared Flashcard Set

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Science Vocab
Common Assessment
21
Science
7th Grade
03/04/2012

Additional Science Flashcards

 


 

Cards

Term
Weathering
Definition
The natural process by which atmospheric and enviromental agents, suc has wind, rain, and tempature changes, disintegrate and decompse rocks
Term
Igneous Rock
Definition
Rock that forms when magma cools and solidifies
Term
Sedimentary Rock
Definition
A rock that forms from compressed or cemented layers of sediment
Term
Metamorphic Rock
Definition
A rock that forms from other rocks as a result of intense heat, pressure, or chemical processes
Term
Rock Cycle
Definition
The series of processes in which rock forms, changes from one type to another, is destroyed, and forms again by geologic processes
Term
Erosion
Definition
The process by which wind, water, ice, or gravity transports soil and sediment from one location to another
Term
Karst Topography
Definition
A type of irregular topography that is characterized by caverns, sinkholes, and unerground drainaige and that forms on limestone or other soluble rock
Term
Glacial Drift
Definition
The rock material carried and deposited by glaciers
Term
Delta
Definition
A mass of material deposited in a trinagular or fan shape at the mouth of a river or stream
Term
Alluvial fan
Definition
A fan shaped mass of rock material deposited by a stream when the slope of the land decreases
Term
Humus
Definition
Dark, organic material formed in soil from the decayed remains of plants and animals 
Term
Soil Horizon
Definition
A layer of soil within a soil profile
Term
Soil Profile
Definition
A vericle section of soil that shows the layers, or horizons
Term
Mantle
Definition
The layer of rock between the Earth's crust and core
Term
Core
Definition
The central part of Earth below the mantle
Term
Crust
Definition
The thin and solid outermost layer of Earth above the mantle
Term
Lithosphere
Definition
The solid, outer layer of Earth that consists of the crust and the rigid upper part of the mantle
Term
Outer Core
Definition
The liquid layer of Earh's Core.  It lies beneath the mantle and surronds the inner core
Term
Inner Core
Definition
Is the solid, dense center of our planet that extends from the bottom of the outter core to the center of Earth
Term
Pangaea
Definition
The supercontinent that formed 300 million years ago and that began to break up 200 million years ago
Term
Plate tectonics
Definition
The theory that explains how large pieces of the lithosphere, called plates, move and change shape
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