Particle model of substances in the gas state
I can describe how the arrangement and movement of particles alters when a substance changes from the liquid to gas state.
Particle model of substances in the gas state
I can describe how the arrangement and movement of particles alters when a substance changes from the liquid to gas state.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- In the gas state a substance can flow, it fills the whole of a container and can be compressed.
- In the gas state, particles of a substance are moving very quickly in random directions with gaps between them.
- In the gas state, particles have enough energy to be free of the attractive forces between them.
- There is nothing at all between the particles in a gas.
Keywords
Gas state - Substances in the gas state can be compressed to take up less space.
Particle - All substances are made of tiny particles, these move differently depending on the state of matter of the substance.
Random movement - In a gas state the particles have a random movement, they move in all directions.
Compress - Compress means that something can be made to take up less space than before. Substances in the gas state can be compressed.
Common misconception
The idea that there is air between the particles in a gas.
Emphasis on explaining that air contains particles and has nothing between them.
Content guidance
- Risk assessment required - equipment
Supervision
Adult supervision required
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Lesson video
Loading...