definite shape and volume

rigid structure

vibrates in place

definite volume; no definite shape

particles slip past each other

no definite shape; no definite volume

independent particles which move around freely

most common phase in the universe

(because it's found in stars)

identity does change

can get back to what you started with

1) gas is produced (bubbles; odor)

2) precipate forms (solid dropping to bottom)  

3) release or absorb energy

4) change in color

mass doesn't change - same everywhere

weight - depends on gravity - depends on where you are

(i.e. on the moon, your mass is the same but your weight changes)

without numbers

(quality)

with number measurement

must have 2 parts

a) number b) unit

system of measurement for:

USA

Europe/Canada

Scientists

USA - standard

Europe/Canada - metric

Scientists - SI  (System Internationale)

1/100

1 m = 100 cm

1/1000

1 m = 1000 mm

doesn't involve a chemical change

color; volume; density; boiling point

mass/volume

amount of matter in a given volume

something's abilityt o react chemically

i.e. if it can rust or oxidize

2 or more substances not combined chemically

can be separated physically (by filtering, magnets, etc.)

differnet molecular forms of the same element

ex. ozone and oxygen

coal and carbon and diamonds

not evenly mixed

i.e. OJ with pulphomogenous

2 or more elements chemically combined

represented by formulas

symbols (what)

subscripts (how many)

same throughout

i.e. air; homogenized milk