Science test- you must get an 100.

solid

A form of matter that has a definite shape and volume

liquid

A state of matter that has no definite shape but has a definite volume.

gas

A state of matter with no definite shape or volume

fluid

A substance that flows

pressure

the amount of force exerted per unit area of a surface

crystalline solid

A solid that is made up of crystals in which particles are arranged in a regular, repeating pattern

amorphous solid

A solid made up of particles that are not arranged in a regular pattern

viscosity

a liquid's resistance to flow

surface tension

the force that acts on the surface of a liquid and that tends to minimize the area of the surface

Melting point

The temperature at which a solid becomes a liquid

melting

The change in state from a solid to a liquid

freezing

the change of state from liquid to solid

vaporization

The change of state from a liquid to a gas

evaporation

The change of a substance from a liquid to a gas

boiling

vaporization that occurs on and below the surface of a liquid

boiling point

the temperature at which boiling occurs

condensation

The change of state from a gas to a liquid

sublimation

the process in which a solid changes directly into a gas

Charles Law

States that a fixed mass of gas is directly proportional to its change in temperature and volume, if the pressure is held constant

Gay-Lussac's Law

the pressure of a gas is directly proportional to the temperature if the volume is constant

Boyle's Law

Inversely proportional, as volume goes up, pressure decreases, and vice versa

inversely proportional

as one variable increases, the other decreases

Directly proportional

As one variable increases, the other does too.