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Soil and Rocks

TermDefinition
environment the surroundings in which an organism lives; provides basic things that an organism needs
erosion the transport of weathered materials by water, wind, ice or gravity
fertility the state or capacity for abundant productivity
Igneous Rock (2 types: extrusive / intrusive) a rock formed from cooled magma
Metamorphic Rock a type of rock that forms when rock is exposed to high temperature and pressure
mineral a naturally-occurring, inorganic, crystalline solid with a definite chemical composition
organic matter material from living organisms, like plants, animals, etc.
parent rock the original rock from which something else was formed
particle size the general dimensions of the particles or mineral grains in a rock or sediment
pH measures the acidity of a solution on a scale from 1-14; a pH of 7 is neutral; pH below 7 is acidic; pH above 7 is basic, or akaline
rock cycle the never-ending cycle in which one rock changes into another type
Sedimentary Rock type of rock that forms from layers of sediment compacted and cemented together
soil the top layer of Earth's surface containing weathered rock, minerals, organic material, air, and water
texture an observed physical property that tells how an object feels to the touch
weathering (2 types: chemical & mechanical) the process by which natural forces break down rocks, minerals, and soil
Created by: lcochrane
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