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ACT Test Prep Vocab

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
2-butanone   A colorless, flammable ketone, CH3COCH2CH3, used in lacquers, paint removers, cements and adhesives, cleaning fluids, and celluloid. Also called methyl ethyl ketone.  
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2-propanol   a postemergence herbicide, C 9 H 9 Cl 2 NO, used for weed control on potatoes, rice, and other crop plants.  
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biotic index   A scale showing the quality of an environment by the types of organisms which inhabit it.  
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calcareous ooze   A fine-grained pelagic sediment containing undissolved sand- or silt-sized calcareous skeletal remains of small marine organisms mixed with amorphous clay-sized material.  
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colorimeter   a device that analyzes color by measuring a given color in terms of a standard color, a scale of colors, or certain primary colors.  
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continental ice sheet crater   a vast expanse of ice which completely covers all underlying terrain. They form on land and spread outward in all directions.  
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CaCo3   calcium carbonate  
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Ch3   carbon trihydrate  
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depth rate    
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ethyl acetate   a colorless, volatile, flammable liquid, C 4 H 8 O 2 , having a fragrant, fruitlike odor: used chiefly as a scent in the manufacture of perfumes, flavorings, and confections, and as a solvent for paints, varnishes, and lacquers.  
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exclusion chromatography   a chromatographic method in which molecules in solution are separated based on their size  
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gamma   a unit of weight equal to one microgram.  
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montane   pertaining to, growing in, or inhabiting mountainous regions  
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nomenclature   a set or system of names or terms, as those used in a particular science or art, by an individual or community, etc.  
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peat   a highly organic material found in marshy or damp regions, composed of partially decayed vegetable matter: it is cut and dried for use as fuel.  
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pinnate   having parts arranged on each side of a common axis  
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polystyrene   a clear plastic or stiff foam, a polymer of styrene, used chiefly as an insulator in refrigerators and air conditioners.  
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prophase   the first stage of mitosis or meiosis in eukaryotic cell division, during which the nuclear envelope breaks down and strands of chromatin form into chromosomes.  
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rallies   to bring into order again  
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retention time   the time it takes a solute to travel through the column  
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semipermeable   permeable only to certain small molecules  
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sluggishly   slow to act or respond  
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sparking device    
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SO4   sulfate  
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tactic   an action or strategy carefully planned to achieve a specific end.  
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tropopause   the interface between the troposphere and the stratosphere.  
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troposphere   the lowest region of the atmosphere, extending from the earth's surface to a height of about 3.7–6.2 miles (6–10 km), which is the lower boundary of the stratosphere.  
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ultraviolet   beyond the violet in the spectrum, corresponding to light having wavelengths shorter than 4000 angstrom units.  
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uranium series   the radioactive series that starts with uranium 238 and ends with a stable isotope of lead of mass number 206.  
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vapor plume   flue gases visible because they contain water droplets.  
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