The document discusses the four states of matter: solids, liquids, gases, and plasma. It explains that matter is anything that has mass and takes up space. It then defines the key properties of each state - solids have a fixed shape and volume, liquids take the shape of their container but have a definite volume, gases spread out to fill their entire container without a definite volume. The document also notes that adding or removing energy can cause matter to change states, from solid to liquid to gas.

1. 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.

2. What is matter?
 Matter is anything that has mass and
takes up space.

3. What do you know about matter?
Solids
Liquids
Gases
Plasma

4. Solids
 Solids have a fixed
shape and a fixed
volume.
 Solids have mass.
 Solids take up space.

5. Liquids
 Liquids take the shape
of their container and
have definite volume.
 Liquids have mass.
 Liquids take up space.

6. Gases
 Gases spread out to
fill the entire space
given and do not
have definite
volume.
 Gases have mass.
 Gases take up
space.

7. Energy determines the state!

8. What will happen? Why?

9. Solid + Energy = ?
 When energy is
added to solids, they
become liquids!
 Examples?

10. Liquid + Energy = ?
 When energy is
added to liquids,
they become gases!
 What examples can
you think of?

11. Changing States
 There are several names for matter changing
states:
 State change
 Phase change
 Physical change

12. 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?