Particle model

Models are developed by scientists to explain the world around us. What is the particle model of matter and what can it help explain?

Diagram of the particle model showing solid, liquid and gas states

The three most familiar states of matter

Explore

Learn about the states of matter, then focus on the particle model. Explore PhET's interactives and try a quiz on types of matter.

Learn about plasmas and Bose-Einstein condensates.

Your tasks

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Create a flyer outlining the particle model and design an activity.

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Create a guide describing the shape, position and movement of particles in different states of matter that you might encounter every day.

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Extend yourself with these activities looking at elements, compounds and mixtures.

Syllabus links | Teaching notes (DOCX 32kB)