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ch3 l1 l2

TermDefinition
Matter all material in the universe that has mass and occupies space
Atom the basic units of matter
Element chemical substances with a given set of properties that cannot be broken down into substances with other
nucleus central core containing called protons and neutrons
molecule a combination of two or more atoms of the same type or of different types joined by covalent bonds
compound made up of two hydrogen atoms bonded to one oxygen atom (H2O)
hydrocarbon organic compounds containing only hydrogen and carbon
solution A mixture in which all the ingredients are evenly distributed.
macromolecule Proteins, nucleic acids, and carbohydrates, and lipids.
protein polymers that serve many functions in organisms.
nucleic acid macromolecules that direct protein production.
carbohydrate polymers that consist of atoms of carbon, hydrogen, and oxygen.
lipid a chemically diverse group of macromolecules that are classified together because they do not dissolve in water.
pH the measure of the acidity or alkalinity of a solution.
feedback loop a cyclical process.
erosion the removal of soil by water, wind, ice, or gravity.
geosphere all of the rocks on and below earth's surface.
lithosphere the outermost layer of earth.
biosphere The earth and all of its organisms and environments.
atmosphere the thin layer of gases that surround earth
hydrosphere all the water salt and fresh on earth in any form
Created by: isa.xo
 

 



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