🔬 Science · Matter & Materials
How Materials Change State
Explain melting, freezing, boiling, condensing, and sublimation using the particle model, interpreting heating and cooling curves to identify melting and boiling points
Typical age: 11–12 years
“If your child was heating a block of ice in a pan and drew a graph of temperature over time, could they explain why the line goes flat at certain points — and what's happening to the particles when it does?”
0 / 4 mastered
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Needs first
- The Particle ModelREQUIRED
Changes of state are explained using the particle model — the particle model must be understood first
- Drawing Particle Diagrams
Explaining changes of state using the particle model draws on particle diagram literacy
- Heating & Cooling ChangesREQUIRED
KS3 heating/cooling curves and particle-level explanation extends KS2 observation that materials change state at specific temperatures