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Scientific Theory

widely tested & accepted hypothesis

Scientific Law

what we find happening over & over again

Frontier Science

new science
-environmental science

Sound Science

consists of dates, theories, & laws that are widely accepted

Junk Science

presented as sound science w/out going through peer review

Positive Feedback Loop

causes a system to change further in the same direction

Negative Feedback Loop

causes a system to change in the opposite direction
-seeking shade


combination of 2 things working together


distinctive building blocks of matter


two or more different elements held together in fixed proportions by chemical bonds


Positive or negative changed group of atoms


Different mass


potential of hydrogen

Organic Compound Exception



carbon & hydrogen

Chlorinated Hydrocarbons

carbon, hydrogen, chlorine

Simple Carbohydrates

carbon, hydrogen, oxygen

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