SOLID  Holds its own shape  Keeps a constant volume  Rigid  Cannot be compressed

SOLID  Particles are very close together in a regular pattern  Particles are strongly attracted to each other  Only particle movement is vibration

Solid 2 main groups  1. Crystalline-particles arranged in a regular, repeating three-dimensional pattern.  Examples: Salt, Sugar, and ice

Solid 2 main groups  2. Amorphous  a. Solid whose particles lack a regular, repeating order.  b. Often called super cooled liquids because they retain certain liquid properties even at temperatures at which they appear to be solid.  Example: Window glass, butter, candle wax

LIQUID  Takes shape of container  Keeps a constant volume  Can flow  Cannot be noticeably compressed

LIQUID  Particles are close together in irregular pattern  Particles are attracted to each other  Particles can move around each other freely and independently

GAS  Expands to fill the container (no definite shape or volume)  Can flow  Can be compressed

GAS  Particles are spread out with no pattern  Particles have no attraction to each other  Particles move at high speeds

PLASMA  A gas that has charged and neutral particles which move freely  Usually give off light  Examples: flash of a lightning bolt northern lights (aurora borealis)

CHANGES OF STATE  SOLID  LIQUID MELTING Example: snowman turns into a puddle

CHANGES OF STATE  LIQUID  GAS VAPORIZATION Example: water turns to steam

CHANGES OF STATE  GAS  LIQUID CONDENSATION Example: water drops form on pot lid

CHANGES OF STATE  LIQUID  SOLID FREEZING Example: water turns into ice

CHANGES OF STATE  SOLID  GAS (w/o liquid phase) SUBLIMATION Example: dry ice turns to “fog”