Science Chemistry - Vocabulary Density — the ratio of mass to volume of a substance Element — a substance that is composed of one type of atom - An element cannot be chemically separated Emulsion — a dispersion of tiny particles of one liquid in another liquid: Example: oil — and — vinegar salad dressing Gas — a physical state in which a substance has no definite volume or shape - A gas will fill a container of any shape Liquid — a physical state in which a substance has definite volume, but no definite shape - A liquid will flow into a container and can be changed into a solid by cooling and into a gas by heating Matter — the stuff of what substances are made Mixture — a combination of substances in which each substance retains its own chemical and physical properties Property — a characteristic of a substance that can be observed, such as color, taste, texture, and density Product — in a chemical reaction, a substance that is formed as a result of the reaction Reactants — the substances that combine in a chemical reaction Solid — a physical state in which a substance has both volume and shape, with molecules held tightly together. A solid can be changed into a liquid by heating Solution — a mixture in which the atoms or molecules dissolve, or become evenly dispersed and the same size Volume — the amount of space taken up by matter
Density — the ratio of mass to volume of a substance
Element — a substance that is composed of one type of atom - An element cannot be chemically separated
Emulsion — a dispersion of tiny particles of one liquid in another liquid: Example: oil — and — vinegar salad dressing
Gas — a physical state in which a substance has no definite volume or shape - A gas will fill a container of any shape
Liquid — a physical state in which a substance has definite volume, but no definite shape - A liquid will flow into a container and can be changed into a solid by cooling and into a gas by heating
Matter — the stuff of what substances are made
Mixture — a combination of substances in which each substance retains its own chemical and physical properties
Property — a characteristic of a substance that can be observed, such as color, taste, texture, and density
Product — in a chemical reaction, a substance that is formed as a result of the reaction
Reactants — the substances that combine in a chemical reaction
Solid — a physical state in which a substance has both volume and shape, with molecules held tightly together. A solid can be changed into a liquid by heating
Solution — a mixture in which the atoms or molecules dissolve, or become evenly dispersed and the same size
Volume — the amount of space taken up by matter