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# Properties of Matter

### Properties of Matter (Unit 3)

TermDefinition
Conductor a substance or object that allows energy to flow through it easily
Dissolving the process by which substances break down into small pieces and spread evenly throughout a liquid (water)
Electrical Energy energy that is absorbed or delivered by an electric circuit
Gas a state of matter in which the substance expands to take both the shape and the volume of its container; molecules are far apart and move freely
Insulator a substance or object that does not allow energy to flow through it easily
Liquid take the shape of their container, filling the bottom of the container first; has the ability to flow; molecules are spaced apart and slide past each other
Magnetism a force of attraction that causes a magnetic material to move
Mass the amount of matter in something
Matter anything that has mass and takes up space
Melting point/freezing point the temperature at which a substance changes from a liquid to a solid or a solid to a liquid by the loss or addition of heat; for water this temperature is 0°C
Metric System the decimal measuring system based on the meter, liter, and gram as units of length, volume (capacity), and weight or mass
Mixture a combination of two or more substances that can be easily separated in some physical way
Physical Properties properties of matter that can be observed, measured, or changed without changing the matter itself
Relative Density floating or sinking when compared to water
Solid definite shape and size; molecules are tightly compacted
Solubility the ability of a substance to dissolve in another substance, such as sugar dissolving in water
Solution a type of mixture in which the particles of one or more substances are dissolved (mix evenly)
States of Matter the forms matter can take, such as solid, liquid, and gas; sometimes called phases of matter
Thermal Energy energy related to the temperature of an object or a substance
Magnetic metals attracted to a magnet are iron, nickel, cobalt, and steel
Created by: whardcastle

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