1. 2 or more substances mixed together but not chemically combined
Air is a mixture
Mixtures
2 or more substances mixed together but not chemically combined

2. 2 types of mixtures (Homogeneous or heterogeneous)
*not well mixed
*does not appear the
same throughout.
easily separated by physical means (filtering, magnets)
Examples: fruit salad, vegetable soup, Granite}

3. 2) Homogeneous Mixture Appears the same throughout Is well mixed
can be separated by physical means
EX: milk, air, suntan lotion, paint, clouds, lemonade

4. Types of Homogeneous mixtures
A) solutions
B) colloids
C) suspensions

6. A) Solutions When one substance dissolves in another
2 parts solute and a solvent
*solute is the substance that is dissolved
*solvent substance that does the dissolving

7. Alloys Metal solutions EX:
Sterling silver is silver with small amounts of Copper dissolved in it
Stainless Steel is iron and chromium

8. B) Colloids
Colloids are solutions. They can be described as a substance trapped inside another substance. They can be identified by their characteristic scattering of light.
do not separate on standing
Mixed together but not dissolved
EX:Milk is a colloid of butter fat globules dispersed within a water based liquid

9. c) Suspensions
The size of the particles is great enough so they are visible to the naked eye.
Blood and aerosol sprays are examples of suspensions.