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22 Cards in this Set

  • Front
  • Back
  • 3rd side (hint)
characteristic property
a quality of a substance that never changes and can be used to identify the substance.
boiling point
boiling point
The temperature at which a substance changes from a liquid to a gas.
melting point
The temperature at which a substance changes from a solid to a liquid.
physical change
A change in a substance that does not change its identity; for example, a change of state.
chemical change
A change in which one or more substances combine or break apart to form new substances
chemical activity
A characteristic property of a substance that indicates its ability to undergo a specific chemical change.
Two or more substances that are mixed together but not chemically combined.
A very well mixed mixture that forms when one substance dissolves another.
pure substance
A substance made of only one kind of matter and having definite properties.
A substance that cannot be broken down into other substances by chemical or physical means.
A substance made of two or more elements chemically combined.
A measure of the force of gravity on an object.
A measure of how much matter is in an object.
International System of Units
The system of units used by scientists to measure the properties of matter.
The amount of space that matter occupies
The amount of mass of a substance in a given volume.
The smallest unit of an element.
The smallest unit of most compounds; also, a combination of two or more atoms that act as a single unit.
chemical bond
The force that holds two atoms together.
A rock that contains a metal or other economically useful material.
A process by which an electric current breaks chemical bonds.
A metal strip that conducts electricity; often used in an electrolysis process.