A pure substance of one type of atom.

A substance composed of atoms from more than one element held together by chemical bonds.

Two or more substances which are mixed but not but not held together by chemical bonds.

A mixture composed of two or more substances, where one substance is dissolved into another substance.

Sodium is a

Sodium chloride (NaCl) is a

Sodium chloride (NaCl) dissolved in water is a

Trail mix is an example of a

Molecules are closely packed, rigid shape and volume.

Definite volume, but conforms to the shape of its container.

Molecules are widely separated, both shape and volume determined by its container.

No definite shape or volume, electrically conductive, examples are lightning, neon lights, and the sun's corona.

Phase change that occurs when a liquid turns into a solid.

Phase change that occurs when a solid turns into a liquid.

Phase change that occurs when a liquid turns into a gas.

Phase change that occurs when a liquid turns into a solid.

Phase change that occurs when a gas turns into a liquid.

Phase change that occurs when a gas turns into a solid.

Phase change that occurs when a solid turns into a gas.

Occurs when one substance combines with another substance to create a new substance

Process that occurs when reactants undergo a chemical change to yield products

A property that is measurable, such as color, mass, or length.

A property that can't be determined by viewing or touching a substance, such as flammability, toxicity, or heat of combustion.

A metric unit for length.

A metric unit for mass.

A metric unit for volume.