Chapter 11

Properties of Matter

MatterIs anything that takes up space.

Examples: ice, water and clouds.

Physical Properties of Matter

Anything you can observe about matter by using one or more of your sense is a Physical

Property.

Measuring Matter

What are States of Matter?

Solids:Is matter with a volume and

shape that stay the same.

Liquids: Is matter that has a volume

that stays the same but a shape that can change.

A liquid takes the shape of whatever container holds it.

Gases:

A gas has no definite shape or volume.

A gas takes up all the space in a container.

Changes of State

Evaporation Condensation

The change of liquid to a gas.

The change of a gas to a liquid.

How does the matter changes?

Physical ChangesChanges in matter that don’t form new kinds of matter are physical changes.

Physical Changes

Example# 1:

Cutting makes a piece of paper smaller, but the paper is still paper.

Cutting:

Example #2

Knitting

Physical Changes

Knitting a wool cap. The thick wool is cut from sheep in spring.

The wool is combed into soft strands, which are pulled into threads and twisted to make yarn.A knitter then knits the wool yarn into a cap.

In the cap, the wool looks different from the way it looked on the sheep, but it is still wool.

Physical Changes

Example # 3: MixtureA mixture is a substance that is made up of two or more kinds of matter.

You put different types of matter together, but no new types of matter are formed.

Solution

Your mixture of salt and water was a solution.

Is a mixture in which different kinds of matter mix evenly.

Since the sand didn’t dissolve in the water, that mixture

wasn’t a solution.A solution of

detergent and water gets

dishes clean.

Chemical Changes

Changes that form different kinds of matter are chemical changes.

Cooking Burning

RottingRusting