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Ch 3 lesson 1-2

TermDefinition
Matter All material in the universe that has mass and occupies space.
Atoms Basic units of matter.
Element A chemical substance with a given set of properties that cannot be broken down into substances with other properties.
Nucleus Central core.
Molecule A combination of two or more atoms of the same or different types joined by covalent bonds.
Compound A substance composed of atoms of two or more different elements.
Hydrocarbons Organic compounds containing only hydrogen and carbon.
Solution A mixture in which all the ingredients are evenly distributed.
Macro molecules Proteins, nucleic acids, carbohydrates, and lipids.
Proteins Polymers that serve many functions in organisms.
Nucleic Acids Macro molecules that direct protein production.
Carbohydrates Polymers that consist of carbon, hydrogen, and oxygen.
Lipids A chemically diverse group of Macro molecules that are classified together because they do not dissolve in water.
pH The acidity or alkalinity of a solution.
Feedback Loop A cause, or input, and an effect, or output, in the same system cyclical process.
Erosion The removal of soil by water, wind, ice, or gravity.
Geo sphere Made of all rock at below the earth's surface.
Lithosphere Hard rock on and just below the Earth's surface.
Biosphere The outermost layer of the Geo sphere.
Atmosphere The layer of gases surrounding our planet.
Hydrosphere Encompasses all water, salt, liquid, ice, and vapor on earth's surface under ground in the atmosphere.
Created by: unicornfarts34
 

 



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