the substance has a fixed shape and cannot be compressed

the substance can flow, it fills the shape of its container and cannot be compressed

the substance does not have a fixed shape and will take the shape of its container

when a substance can be poured from one place to another

when a substance is made to take up less space (volume)

Solid and liquid states

Science

Melting: particle model

Bunsen burners

Melting: melting points and freezing points

Particle model of substances in the gas state

Boiling and condensing

Changes of state: energy and evaporation

In the Solutions unit, pupils will build on their understanding of the states of matter to learn about mixtures, solutions, and dissolving in terms of the particle model.

In Y4 of primary science, pupils learnt about ‘solids, liquids and gases’ and changes of state.

This unit covers the properties of solids, liquids, and gases using the particle model, including gas pressure. It explains changes of state in terms of the particle model while developing skills in using appropriate techniques, apparatus, and materials in lab work.

Solid, liquid, gas states and changes of state

Substances can exist in three different states of matter. The solid state is one of the three states of matter, what are the other states of matter?

Match the state of matter to the example or a substance in that state. 

Which of these descriptions describes how the the particles a solid state are arranged?

Which of these descriptions describes how the particles in a liquid state are arranged?

A substance in the liquid state has particles that are free to move past their neighbouring particles, this means that they can {{}} and can take the shape of a container.

A substance in the liquid state and solid state has no space between the particles. This means that substances in liquid states or solid states cannot be {{}}.

Complete the sentence. All materials and substances that behave the same can be {{}} into categories.

What state of matter is the water in the bottle?

The balloons are filled with helium, what state of matter is helium at room temperature?

Liquid state is one of the states of matter.  What are the other states of matter called?

All materials and substances can be sorted by the way they behave. Complete the sentence: These behaviours are called the {{}} of a material or substance.

Match the property to the state of matter.

Starter Quiz

Complete the sentence. All materials and substances that behave the same can be into categories.