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ACT Test Prep Scienc

TermDefinition
2- Butanone A colorless, flammable ketone, CH3COCH2CH3, used in lacquers, paint removers, cements and adhesives, cleaning fluids, and celluloid. Also called methyl ethyl ketone.
2-Propanol A clear, colorless, flammable, mobile liquid, (CH3)2CHOH, used in antifreeze compounds, in lotions and cosmetics, and as a solvent for gums, shellac, and essential oils.
beta particles a fast-moving electron emitted by radioactive decay of substances. (The emission of beta particles was originally regarded as a ray.).
biotic index Scheme for grading river quality according to the diversity and abundance of the river fauna present, with particular reference to ‘key species’ with known pollution tolerances. The scale ranges from 10 (clean water) to 0 (gross)
chromatid each of the two threadlike strands into which a chromosome divides longitudinally during cell division. Each contains a double helix of DNA.
colorimeter an instrument for measuring the intensity of color.
plume a long, soft feather or arrangement of feathers used by a bird for display or worn by a person for ornament
crown fire a forest fire that spreads from treetop to treetop.
CaCl2 a white deliquescent salt occurring naturally in seawater and used in the de-icing of roads and as a drying agent. Formula: CaCl2
CaCo A colorless or white crystalline compound, CaCO3, occurring naturally as chalk, limestone, marble, and other forms and used in a wide variety of manufactured products including commercial chalk, medicines, and dentifrices.
hexane a colorless liquid hydrocarbon of the alkane series.
capillary any of the fine branching blood vessels that form a network between the arterioles and venules.
CuO Copper Oxide
ethyl acetate a colorless, volatile liquid with a fruity smell, used as a plastics solvent and in flavorings and perfumes.
failed burn something is supposed to burn but doesnt?
gas chromatograph a device or apparatus used in gas chromatography to separate the constituents of a volatile substance.
genus a principal taxonomic category that ranks above species and below family, and is denoted by a capitalized Latin name, e.g., Leo.
lithium chloride a white, water-soluble, deliquescent, crystalline solid, LiCl, used chiefly in the manufacture of mineral water, especially lithia water, and as a flux in metallurgy.
manometer an instrument for measuring the pressure of a fluid, consisting of a tube filled with a liquid, the level of the liquid being determined by the fluid pressure and the height of the liquid being indicated on a scale.
mesopause the boundary or transition zone between the mesosphere and the ionosphere.
mesosphere (in the classification of the earth's atmosphere by chemical properties) the region between the ionosphere and the exosphere, extending from about 250–650 miles (400–1050 km) above the surface of the earth.
microscopy the use of the microscope.
paleozoic noting or pertaining to an era occurring between 570 million and 230 million years ago, characterized by the advent of fish, insects, and reptiles.
pinnate resembling a feather, as in construction or arrangement; having parts arranged on each side of a common axis:
polyrhythm the simultaneous occurrence of sharply contrasting rhythms within a composition.
polystyrene a clear plastic or stiff foam, a polymer of styrene, used chiefly as an insulator in refrigerators and air conditioners.
prophase Cell Biology. 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.
recasting to cast again or anew.
uranium series the radioactive series that starts with uranium 238 and ends with a stable isotope of lead of mass number 206.
retention time 1 (in chromatography) the amount of time elapsed from the injection of a sample into the chromatographic system to the recording of the peak (band) maximum of the component in the chromatogram.
Created by: 1596521375