anything that has mass & takes up space

Matter

Mass

the amount of matter an object contains

States of Matter

Solid – definite shape definite volume Particles of a solid

are packed close together and the motion seems to be a vibration.

States of Matter

Liquid - no definite shape definite volume Particles of a liquid

bump into each other; they push the particles farther apart and move past them. This causes the "flow" of a liquid.

States of Matter Gas –

no definite shape

no definite volume

The particles collide with enough force to push the particles so far apart that they escape the attraction of the surrounding particles.

high compressibility

4th State of Matter?Plasma

Closely related to gases

Particles are neither molecules or atoms, but rather electrons and positive ions

Formed at very high temperatures (high enough to ionize the atoms)

Move freely like the particles of a gas

ExamplesStars, comets, and aurora borealis

Names for phase changes Melting - Solid changes to

Liquid

Freezing - Liquid changes to Solid

Sublimation - Solid changes to Gas

Deposition - Gas changes to Solid

Vaporization - Liquid changes to Gas Evaporation - vaporization

that takes place at the surface of a liquid.

Condensation - Gas to Liquid

Draw the following graph into your notes:

Kinetic Energy

As matter moves from the (solid → liquid → gas) its kinetic energy increases

Kinetic Energy Law Matter is made up of small particles (atoms,

molecules, ions) These particles are in constant random

motion These particles collide with themselves and

the wall of their container What happens as temperature is

increased?