CHS Science Vocabulary - Matter and Properties

A comprehensive vocabulary review of key chemistry definitions regarding matter, physical and chemical properties, phase changes, and the Kinetic Molecular Theory.

Matter

Anything that has mass and Volume

Mass

The amount of matter that an object has

Volume

The amount of space that an object fills

Pure Substance

Matter that contains only one type of particle

Mixture

Contains two or more Pure Substances

Element

A pure substance that Cannot be changed into anything simpler

Compond

Pre substance that consists of two or more elements

Heterogenous Mittre

A mixture that is not uniform in it's composition

Homogenous Mixture

Made of substances that are everly and microscopically mixed together

Physical Properties

Those that you can observe with your senses, measure, or calculate

State

Which matter can be usually found in solid, liquid, or gas

Melting point

The temperature at which the substances changes from a Solid to a liquid

Boiling Point

The temperature at which the Substances Changes from a liquid to a gas rapidly

Malleable

Metal that can be physically Changed in shape

Ductile

Metal that can be "drawn" into the wires

Solubility

A substance that will dissolve in a given amount of another substance (water)

Conductivity

The ability of a material to conduct electricity on heat

Density

The mass per unit Volume of a substance

Chemical property

Describes the behaviour of a substance as it changes into a new Substance

Flammability

The rapid reaction of some Substances with oxygen resulting in the relase of a great deal of energy

Corrosion

The slow reaction of certain metals with oxygen to form metal oxides

Physical Change

May cause a Change in form or state, but not in Substance

Chemical Change

When a substance changes into one or more new Substances W/ different Properties

Kinetic Molecular theory

The idea that matter is made from moving invisible particles

Melting

The change of State from Solid to liquid

Solidification

The Change of State from liquid to solid

Evaporation

The change of state from liquid to gas

Sublimation

The Change of State from Solid to gas

Beposition

The Change of State from gas to solid