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chapter 3 vocab

TermDefinition
matter any material that has mass and occupies space
atoms the basic unit of matter
element a chemical substance with a unique set of properties that cannot be broken down into substances with other properties
nucleus the central core of an atom
compound a substance combining atoms of two or more different elements
hydrocarbon an organic compound combining hydrogen and carbon
solution a mixture in which all the ingredients are equally distributed
macromolecule a large organic molecule
protein an organic compound made up of carbon, oxygen, hydrogen, nitrogen, and sometimes sulfur
nucleic acid the macromolecule that carries hereditary information
carbohydrate an organic compound that consists of atoms or carbon, hydrogen, and oxygen
lipid chemically diverse compound that does not dissolve in water
pH a measure of the acidity or alkalinity of a substance
feedback loop a circular process that describes how an event is both a cause and an effect in the same system; can be a positive feedback loop or a negative feedback loop
erosion the removal of soil by water, wind, ice, or gravity
geosphere all of the rock at and below earth's surface
lithosphere sphere of Earth made up of the hard rock on and just below Earth's surface; the outermost layer of both Earth and its geosphere
biosphere the earth and all of its organisms and environments
atmosphere the thin layer of gases that surrounds earth
hydrosphere all of the water, in the form of liquid, ice, or vapor, above and below earth's surface and in the atmosphere
Created by: tyasia8
 

 



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