var nc = 41, fc = new Array(nc); fc[0] = {t:"Matter",d:"Anything that has mass and occupies space."}; fc[1] = {t:"Mass",d:"The property that defines the quantity of matter in an object."}; fc[2] = {t:"Energy",d:"The capacity to transfer heat or do work."}; fc[3] = {t:"Chemistry",d:"The study of the composition, structure, and properties of matter and of the energy consumed or given off when matter undergoes a change."}; fc[4] = {t:"Substance",d:"Matter that cannot be broken down to simpler matter by any physical process; also known as pure substance."}; fc[5] = {t:"Physical Process",d:"A transformation of a sample of matter, such as a change in its physical state, that does not alter the chemical identity of any substance in the sample."}; fc[6] = {t:"Mixture",d:"A combination of pure substances in variable proportions in which the individual substances retain their chemical identities and can be separated from one another by a physical process."}; fc[7] = {t:"Homogenous Mixture",d:"A mixture in which the components are distributed uniformly throughout and have no visible boundaries or regions."}; fc[8] = {t:"Solution",d:"Another name for homogeneous mixture. Solutions are often liquids, but they may also be solids or gases."}; fc[9] = {t:"Heterogeneous Mixture",d:"A mixture in which the components are not distributed uniformly, so that the mixture contains distinct regions of different compositions."}; fc[10] = {t:"Element",d:"A pure substance that cannot be separated into simpler substances by any chemical process."}; fc[11] = {t:"Compound",d:"A pure substance that is composed of two or more elements linked together in fixed proportions and that can be broken down to those elements by some chemical process."}; fc[12] = {t:"Law of Constant Composition",d:"All samples of a particular compound contain the same elements combined in the same proportions."}; fc[13] = {t:"Atom",d:"The smallest particle of an element that retains the chemical characteristics of the element."}; fc[14] = {t:"Molecule",d:"A collection of atoms chemically bonded together in characteristic proportions."}; fc[15] = {t:"Chemical Formula",d:"A notation for representing elements and compounds; consists of the symbols of the constituent elements and subscripts identifying the number of atoms of each element in one molecule."}; fc[16] = {t:"Chemical Equation",d:"Notation in which chemical formulas express the identities and their coefficients express the quantities of substances involved in a chemical reaction; a description of the identities and quantities of reactants (substances consumed during a chemical reaction) and products (substances formed)."}; fc[17] = {t:"Chemical Reaction",d:"The transformation of one or more substances into different substances."}; fc[18] = {t:"Chemical Bond",d:"The energy that holds two atoms in a molecule together."}; fc[19] = {t:"Filtration",d:"A process for separating particles suspended in a liquid or a gas from that liquid or gas by passing the mixture through a medium that retains the particles."}; fc[20] = {t:"Distillation",d:"A separation technique in which the more volatile (more easily vaporized) components of a mixture are vaporized and then condensed, thereby separating them from the less volatile components."}; fc[21] = {t:"Intensive Property",d:"A property that is independent of the amount of substance present."}; fc[22] = {t:"Extensive Property",d:"A property that varies with the quantity of the substance present."}; fc[23] = {t:"Physical Property",d:"A property of a substance that can be observed without changing it into another substance."}; fc[24] = {t:"Density (d)",d:"The ratio of the mass (m) of an object to its volume (V)."}; fc[25] = {t:"Chemical Property",d:"A property of a substance that can be observed only by reacting it to form another substance."}; fc[26] = {t:"Solid",d:"A form of matter that has a definite shape and volume."}; fc[27] = {t:"Liquid",d:"A form of matter that occupies a definite volume but flows to assume the shape of its containers."}; fc[28] = {t:"Gas",d:"A form of matter that has neither definite volume nor shape, and that expands to fill its containers; also known as vapor."}; fc[29] = {t:"Sublimation",d:"Transformation of a solid directly into a vapor (gas)."}; fc[30] = {t:"Deposition",d:"Transformation of a vapor (gas) directly into a solid."}; fc[31] = {t:"Scientific Method",d:"An approach to acquiring knowledge based on observation of phenomena, development of a testable hypothesis, and additional experiments that test the validity of the hypothesis."}; fc[32] = {t:"Hypothesis",d:"A tentative and testable explanation for an observation or a series of observations."}; fc[33] = {t:"Scientific Theory (Model)",d:"A general explanation of a widely observed phenomenon that has been extensively tested and validated."}; fc[34] = {t:"Meter",d:"The standard unit of length, named after the Greek metron, which means “measure,” and equivalent to 39.37 inches."}; fc[35] = {t:"Significant Figures",d:"All the certain digits in a measured value plus one estimated digit. The greater the number of significant figures, the greater the certainty with which the value is known."}; fc[36] = {t:"Precision",d:"The extent to which repeated measurements of the same variable agree."}; fc[37] = {t:"Accuracy",d:"The agreement between an experimental value and the true value."}; fc[38] = {t:"Conversion Factor",d:"A fraction in which the numerator is equivalent to the denominator but is expressed in different units, making the value of the fraction one."}; fc[39] = {t:"Kelvin (K)",d:"The SI unit of temperature."}; fc[40] = {t:"Absolute Zero (0 K)",d:"The zero point on the Kelvin temperature scale; theoretically the lowest temperature possible."};