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

Properties of solids, liquids and gases

Comparing and grouping solids, liquids and gases

Changing state: solid to liquid

Changing state: liquid to solid

Melting ice caps and glaciers (non statutory - Climate Change & Sustainability)

Thermometers and data loggers

Melting temperatures: plan

Melting temperatures: do and review

Melting temperatures: research

Changing state: liquid to gas

Changing state: gas to liquid

Everyday examples of evaporation and condensation (non-statutory)

Evaporation and condensation in the water cycle

Temperature and evaporation: plan

Temperature and evaporation: do and review

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? 

Starter Quiz