What's in a Substance?
(Matter)
Atoms, Molecules, Compounds and Elements |
The Particle Model of Matter
Things you need to know;
- A model is something that helps people understance complex ideas.
- It could be a physical model, or a 'thought' model
- The main ideas of the particle model are:
- All matter is made up of very small particles
- The particles are held together by bonds of varying strength
- These particles are always moving
- The particle movement speeds up as temperature increases and slows down as it decreases
- The particle model helps us understand the following
- Diffusion
- Changes of state
- Expansion and contraction
- The behaviour of water
- Pressure
- Bouyancy
Resources that will help you
Digging deeper
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Downloads
Hands On Lab
- Exp. 4 Investigating Diffusion
- Exp. 5 Expansion & contraction
- Exp. 6 Cohesive Properties of Water
Virtual Lab
Quizzes
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