Mixing and Separating Mixtures

Separating Mixtures

Use Physical Properties to Separate

Multiple Choice

Chemical properties are used to separate mixtures.

• True

• False

Method: Magnetism

• Used to Separate: Iron, Nickel, Cobalt

• Example: Iron and Sand

• Example: Steel and Plastic

Multiple Choice

A magnet would be a good tool to use when you need to separate a mixture of iron filings and pepper.

• True

• False

Method: Sieve or Strainer

• Used To Separate: Larger Particles from Smaller Particles

• Example: Rocks from Sand

Multiple Choice

A sieve would be a good tool to use to separate larger pieces from much smaller pieces in a mixture.

• True

• False

Method: Filter

• Used to Separate: Small Particles

• Example: Water from Sand

Multiple Choice

All materials will flow through a filter.

• True

• False

Method: Density

• Used to Separate: Floating or Sinking

• Example: Salt and Pepper in Water

Multiple Choice

Mixtures can be separated when the materials in it have different densities.

• True

• False

Method: Boil

• Used to Separate: Water (Evaporation)

• Example: Water and Salt

Multiple Choice

To separate a solution (one substance dissolved into a liquid), the liquid can be boiled to separate the two substances.

• True

• False

Separating Several Types of Matter

• Multiple Methods Can Be Used

• Example: Filter & Evaporation/Boiling

Multiple Choice

Sometimes, more than one method of separating a mixture will be needed to separate all the materials in the mixture.

• True

• False

Separating Mixtures is a Physical Change

All Materials Still Have the Same Properties!

Multiple Choice

When mixtures are separated, it is a chemical change in matter.

• True

• False