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17 terms

Ch 2 quiz

STUDY
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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
-erosion
Negative Feedback Loop
causes a system to change in the opposite direction
-seeking shade
Synergenic
combination of 2 things working together
Elements
distinctive building blocks of matter
Compounds
two or more different elements held together in fixed proportions by chemical bonds
Ion
Positive or negative changed group of atoms
Isotope
Different mass
pH
potential of hydrogen
Organic Compound Exception
Methane
Hydrocarbons
carbon & hydrogen
-methane
Chlorinated Hydrocarbons
carbon, hydrogen, chlorine
-DDT
Simple Carbohydrates
carbon, hydrogen, oxygen
-glucose