Particles
Science: KS3, topic 3.5.3
Particles
Solids, liquids, and gases are all made of particles.

Particles
- You know that solids, liquids and gases are made of particles.
- But what are particles?

Atoms and molecules
- There are two main types of particles: Atoms and molecules.
- Atoms are pure elements, like gold, iron, or helium.
- Molecules consist of multiple atoms attached together, like water.

Particle mixtures
- Solids, liquids and gases are made of either atoms or molecules.
- Solids, liquids and gases can also be a mixture of both.
Test yourself on Particles
What is a molecule?
What is an element?
Which statement about particles is correct?
Why is helium not made of molecules?