Particle model of matter
KS3 · 25 minutes · Explain states of matter using particles.
Answer by: Type. You can change method or take a break at any time.
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Our learning goal
Explain states of matter using particles.
Your turn: Choose one thing you would like to understand by the end.
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My lesson notes & project
Full teaching script
- Today: Particle model of matter. Our goal: Explain states of matter using particles.
- Take one idea at a time. Pause after each sentence; ask for repetition whenever you need it.
- Solids have particles locked in a lattice, vibrating. Liquids have them touching but sliding. Gases have them far apart and fast. Heating adds energy, so particles move more and the state changes.
- Together: choose one example from the explanation and show how it works. What do you notice?
- Your turn: Draw the three states and label the energy change at each boundary.
- Reflect: what made sense, and what would you like explained differently?
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