Matter
Substances
Mixtures of Substances
Uniform and definite
composition
A physical combination of 2 or
more substances
Elements
Compounds
Simplest form of matter that
cannot be separated by
chemical means
2 or more elements
chemically combined in a
definite composition
Found on the Periodic Table
H2O, MgSO4
Homogenous
Mixtures
Heterogeneous
Mixtures
Uniform in composition
Not uniform in
composition
Solutions
Uniform composition within a
solution