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ACT Science Terms
n/a
18
Science
12th Grade
07/06/2012

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Term
ATP
Definition
a chermical that is considered to be the "feul" or energy source for an organism
Term
Aquesous solution
Definition
a solution in which the solvent is water
Term
Calibration
Definition
the examination of the performance of an instrument in an experiment whose outcomes are known, for the purpose of accounting for the inaccuracies inherent in the instrument in future experiments whose outcomes are not known
Term
Capillaries
Definition
Vascular tissue that recieves blood from the arteroles and release the bloog to the cenuoles
Term
Catalyst
Definition
An agent that changes the rate of a reaction, without itself being altered by the reaction
Term
celestial equator
Definition
the extension of the earths equator out onto the celestial sphere
Term
centripetal force
Definition
the net force that acts to result in the centripetal acceleration. it is not an individual force but the sum of the forces in the radial direction. it is directed toward the center of the circular motion
Term
absolute zero
Definition
the lowest possible temperature, about -273°C.
Term
air mass
Definition
 a large body of air characterized by certain values of temperature and humidity.
Term
alkali 
Definition
 a strongly basic hydroxide.
Term
alkali 
Definition
 a strongly basic hydroxide.
Term
alloy 
Definition
a substance composed of two or more metals.
Term
alternating current
Definition
 an electric current that reverses direction periodically.
Term
amino acid
Definition
organic chemicals with an acid group (-COOH) at one end and an amino group (-NH2) at the other; the constituent molecules of proteins.
Term
anemia 
Definition
substandard concentration of red blood cells.
Term
antibody
Definition
a blood protein that protects the body from foreign chemicals or microorganisms.
Term
aorta
Definition
the largest artery, carrying blood out of the left ventricle.
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