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

Changing state is when a material changes state from one state to another.

Temperature is a measure of how hot or cold something is.

Melting is when a material or substance changes from its solid state to its liquid state.

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

Everyday examples of changing state: solids and liquids (non-statutory)

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

This unit explores the properties of solids, liquids, and gases, and how materials change state when heated or cooled. It covers evaporation, condensation, and the water cycle, with a focus on practical enquiries, careful observations, accurate measurements, and presenting findings.

Introduction to states of matter and changing states

Physical activity and equipment requiring safe use

There are lots of examples of solids and liquids changing __________ in real life. 

Glass blowers use their understanding of {{}} changing state in their work. 

Everyday examples of materials which can change from {{}} state to liquid state include butter, chocolate and candle wax.

Lava cooling is an example of a material changing from...

The process where materials change from solid state to liquid state is called {{}}.

The process where water changes from liquid state to solid state is called...

At what temperature does water change from a solid state to a liquid state? 

Materials in which state of matter can flow? 

Which state of matter takes the shape of the bottom of a container?

Which state of matter has no fixed volume?

Match the change of state to the process required to cause it.  

Which of these materials is in the liquid state at room temperature? 

Content guidance

Risk assessment required - equipment

Adult supervision required

Introduction

What will you need for this lesson?

Are you ready to learn?

Equipment

Content guidance

Supervision

Worksheet