Mixtures Two or more substances that are not

chemically combined with each other and can be separated by physical means.

The substances in a mixture retain their individual propertiesExamples: Fruit Salad, Pizza…any others?

Solutions Solution: is a special kind of mixture where

one substance dissolves in another.It may appear to be a single substance but it

is composed to two or more substances that are distributed evenly amongst each other.

A solution may be a liquid, a gas or a solid.Examples: Chocolate Milk, Powdered

Lemonade and Water, Steel, Brass

Elements The simplest form of a pure substance.

They cannot be broken into anything else by physical or chemical means.Examples: Gold, aluminum, leadElement Song

Compounds Pure substances that are the unions of two

or more elements. They can be broken into simpler substances by chemical means.Examples: Table Salt

Two different types of mixtures: heterogeneous

and homogenous

HeterogeneousDo not appear to be the same throughout

the mixture.The different components are visibly

distinguishable from one another. Example: Chocolate Chip Cookies, Pizza,

Fruit Salad.

Heterogeneous Mixtures Suspension

A mixture that looks uniform when stirred or shaken that separates into different layers when it is not longer agitated.

Example: Settled orange juice, medicines Colloids

is a mixture of very tiny particles of pure substances that are dispersed in another substance but do not settle out of the substance.○ Particles in colloids are much smaller than those in

suspension○ Because of how small they are, they do not settle to the

bottom to form a different layer.○ Examples: paint, whipped cream, fog

Heterogeneous Mixtures

Emulsion is any mixture of immiscible liquids in which

the liquids are spread throughout one another

Mayonnaise

Liquid-Liquid Mixtures○ Oil and vinegar

The two liquids are immiscible

Homogeneous MixturesHas the same uniform appearance and

composition throughout.It is “well mixed”Example: Table salt and waterSolutions are homogenous mixtures

○ It is formed when one substance dissolves in another

○ It always has a substance that is dissolved and a substance that does the dissolving.Solute: the substance that is being dissolvedSolvent: the substance that does the dissolving

○ Examples: vinegar, air, ocean water

Homogenous MixturesSolutions are homogenous mixtures

○ It is formed when one substance dissolves in another

○ It always has a substance that is dissolved and a substance that does the dissolving.Solute: the substance that is being dissolvedSolvent: the substance that does the dissolving

○ Examples: vinegar, air, ocean water