What‘s What‘s Matter?Matter? I Don’t know. What’s a matter with you?

MatterMatter is anything that has is anything that has mass and takes up mass and takes up

spacespace..

1.Solids

2.Liquids

3.Gases

4.Plasma

The FOUR states / phases of matter

Each phase has a different amount of energy

Solids• Solids have a definite shape (shape can NOT change) and a definite volume (volume can NOT change).

• Solids are hard because their molecules have been packed together tightly.

• The molecules vibrate in place.

• Solids have the least amount of energy.

Liquids• Liquids have indefinite shape (shape CAN change), and a definite volume (volume can NOTchange).

• The molecules are not packed together tightly. This allows liquids to flow.

• Liquids have a moderate amount of energy.

Gases•Gases have indefinite shape (shape CAN change) and indefinite volume (volume CAN change).

• Molecules are spread very far apart.

•Gases have the most energy.

Plasma•Plasma has indefinite shape (shape CAN change) and indefinite volume (volume CAN change).

• Plasma is a highly energized gas

•Plasma is very rare on Earth

•Examples are lightening and stars

Phase Changes•Phases can change from one state, or phase, of matter to another.

•As energy is added to the substance, the molecules move faster and spread apart.

Phase changes

When heat energy is added, the molecules speed up and spread apart causing a PHASE CHANGE.

SOLID LIQUID GAS

melting evaporating

Phase changes

When heat energy is removed, the molecules slow down and get closer together, causing a PHASE CHANGE.

SOLID LIQUID GAS

freezing condensation

Demonstration of melting:

A solid turns into a liquid.

Demonstration of freezing:

A liquid turns into a solid.

Demonstration of boiling:

A liquid turns into a gas.

Demonstration of condensation:

A gas turns into a liquid.

During the time that the object is going through a phase change, the temperature remains the same.

So that’s So that’s matter???matter???