What you observe
Interactive learning tool
Particle Model Explorer
Investigate how the arrangement and movement of particles explain the observable properties of solids, liquids and gases.
Explore a state
How does a solid behave?
Choose a state, then connect the observable sample to its particle model.
Particle model
Observation
The solid keeps its own shape and has a fixed volume.
Particle explanation
Its particles are held in fixed positions in a regular arrangement.
Compare states
Same properties, three models
Compare the arrangement, movement, shape and volume of each state.
What you will practise
Observe, model and explain
- Observe differences in shape and volume.
- Model particle arrangement, spacing and movement.
- Explain material properties using evidence from particle models.