Classification of Matter Fill-in

Mixture
Heterogeneous mixture
Suspension
Homogeneous mixture
Solution
Alloys
Colloids
Elements
Compounds
Molecules

There are several types of colloids:

Name Composition Example
Aerosol Liquid in gas Fog
Aerosol Solid in gas Smoke
Foam Gas in liquid Whipped Cream
Solid Foam Gas in solid Marshmallow
Emulsion Liquid in liquid Milk
Solid Emulsion (gel) Liquid in solid Butter
Sol Solid in liquid Paint, cell fluid
Solid Sol Solid in solid Ruby