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ACT Test Prep scienc
science reasoning vocabulary
Term | Definition |
---|---|
2_propanol | Isopropyl alcohol is a chemical compound with the molecular formula C₃H₈O or C₃H₇OH. It is a colorless, flammable chemical compound with a strong odor. |
theta | temperature (especially in degrees Celsius). |
absorbance | a measure of the capacity of a substance to absorb light of a specified wavelength. It is equal to the logarithm of the reciprocal of the transmittance. |
beta particles | a fast-moving electron emitted by radioactive decay of substances. (The emission of beta particles was originally regarded as a ray.). |
alpha decay | is a type of radioactive decay in which an atomic nucleus emits an alpha particle and thereby transforms (or 'decays') into an atom with a mass number 4 less and atomic number 2 less. |
capillary | any of the fine branching blood vessels that form a network between the arterioles and venules. |
charged particles | In physics, a charged particle is a particle with an electric charge. It may be an ion, such as a molecule or atom with a surplus or deficit of electrons relative to protons |
colorimeter | an instrument for measuring the intensity of color. |
biotic index | a scale for showing the quality of an environment by indicating the types of organisms present in it. It is often used to assess the quality of water in rivers. |
crown fire | a forest fire that spreads from treetop to treetop. |
calcareous ooze | calcium carbonate mud formed from the hard parts (tests) of the bodies of free-floating organisms |
CaCl2 | Calcium chloride, CaCl₂, is a salt of calcium and chlorine. It behaves as a typical ionic halide, and is solid at room temperature. Common applications include brine for refrigeration plants, ice and dust control on roads, and desiccation. |
CaCo3 | Calcium carbonate is a chemical compound with the formula CaCO₃. It is a common substance found in rocks in all parts of the world, and is the main component of shells of marine organisms, snails, coal balls, pearls, and eggshells. |
Denature | destroy the characteristic properties of (a protein or other biological macromolecule) by heat, acidity, or other effects that disrupt its molecular conformation. |
ecopark | EcoPark located in Tuen Mun Area 38, on west side of Hong Kong, is similar to an industrial park exclusively for waste recycling and environmental engineering |
climactic | having to do with the weather conditions prevailing in an area in general or over a long period. |
erosion | the gradual destruction of tissue or tooth enamel by physical or chemical action. |
ethyl acetate | Ethyl acetate is the organic compound with the formula CH₃-COO-CH₂-CH₃. This colorless liquid has a characteristic sweet smell and is used in glues, nail polish removers, decaffeinating tea and coffee, and cigarettes. |
flask | a narrow-necked glass container, typically conical or spherical, used in a laboratory to hold reagents or samples. |
gamma | relating to gamma rays. |
genus | a principal taxonomic category that ranks above species and below family, and is denoted by a capitalized Latin name, e.g., Leo. |
ice shelf | a floating sheet of ice permanently attached to a landmass. |
mesopause | the boundary in the earth's atmosphere between the mesosphere and the thermosphere, at which the temperature stops decreasing with increasing height and begins to increase. |
manometer | an instrument for measuring the pressure acting on a column of fluid, especially one with a U-shaped tube of liquid in which a difference in the pressures acting in the two arms of the tube causes the liquid to reach different heights in the two arms. |
pinnate | (especially of an invertebrate animal) having branches, tentacles, etc., on each side of an axis, like the vanes of a feather. |
pore water | water contained in pores in soil or rock. |
sluggishly | markedly slow in movement, flow, or growth. |
supersaturated | increase the concentration of (a solution) beyond saturation point. |
tropopause | the interface between the troposphere and the stratosphere. |
zoning | divide into or assign to zones, in particular. |