Everything is made up of particles.

How do you think the particles are arranged in solids, liquids and

gases?

Particle Arrangement

Learning Objectives:

• to be able to explain how the arrangement of particles gives the physical properties associated in a solid, liquid and gas.

• to understand that particles are tiny and make up all matter.

The particle modelThe difference between solids, liquids and gases can be explained by the…

All substances are made up of particles.

The particles are attracted to each other. Some particles are attracted strongly to each other and others weakly.

The particles move around. They are described as having kinetic energy.

The kinetic energy of the particles increases with temperature.

Think about solids first

Particles in a solid – animation

Next think about liquids

Particles in a liquid – animation

Potassium Permanganate

Now think about gases

Particles in a gas – animation

Modelling

• Class group to model particles in solids, liquids and gases.

Match up the arrangement of particles L5

Solid

Liquid

Gas

Particle Arrangement

Learning Objectives:

• to be able to explain how the arrangement of particles gives the physical properties associated in a solid, liquid and gas.

• to understand that particles are tiny and make up all matter.