A solid has a fixed shape and volume but some solids can change shape when a force is applied.

A liquid can flow, has a fixed volume and takes the shape of the bottom its container

A gas can flow, has no fixed volume and takes the shape of the whole of its container

To classify is to sort objects into groups

A Venn diagram is a way of displaying how you group items. It is made up of overlapping circles

Comparing and grouping solids, liquids and gases

Science

In this Introduction to states of matter and changing states unit, pupils learn that some materials change state when they are heated or cooled. In the Properties, changes and separating materials unit, they will build on this knowledge to learn that dissolving, mixing and changes of state are reversible changes

In the Everyday materials unit, pupils learnt to compare and group together a variety of everyday materials on the basis of their simple physical properties. In this Introduction to states of matter and changing states unit, pupils will build on this knowledge to compare and group materials together according to whether they are solids, liquids or gases

Introduction to states of matter and changing states

Physical activity and equipment requiring safe use

Which of the following can exist as different states of matter? 

Solids, liquids and gases have different {{}}. 

We can ________ and classify materials as solid, liquid or gas.

Which of the following materials can appear to have properties of both solids and liquids? 

Which of the following is a type of diagram that can be used to group solids, liquids and gases? 

The three common states of {{}} are solid, liquid and gas.

Identify which of the following are liquid at room temperature. 

Which state or states of matter have a fixed volume? 

Which state or states of matter takes the shape of the whole of its container? 

Which state or states of matter have a fixed shape, except when a force is applied to them?

Which state or states of matter is often invisible to the human eye?

Content guidance

Risk assessment required - equipment

Adult supervision required

This lesson will be removed by end of Summer Term 2025.

Comparing and grouping solids, liquids and gases

Lesson outcome

Content guidance

This lesson will be removed by end of Summer Term 2025.