Matter:

It’s what the world is made of.

Adapted by Francisco González for a CLIL unit aimed at Year 5 students in Primary Education.

What is matter? Matter is anything that has mass

and takes up space.

What do you know about matter?

Solids Liquid

s

GasesPlasma

Solids Solids have a fixed

shape and a fixed volume.

Solids have mass. Solids take up space.

Liquids

Liquids take the shape of their container and have definite volume.

Liquids have mass. Liquids take up space.

Gases

Gases spread out to fill the entire space given and do not have definite volume.

Gases have mass. Gases take up

space.

Energy determines the state!

What will happen? Why?

Solid + Energy = ?

When energy is added to solids, they become liquids!

Examples?

Liquid + Energy = ? When energy is

added to liquids, they become gases!

What examples can you think of?

Changing States There are several names for matter changing states:

State change

Phase change

Physical change

Review Questions

1. What state of matter has definite volume and definite shape?

2. Describe the properties of liquids.3. Describe the differences between

gases and liquids.4. What is needed for states of

matter to change phase?