This memory aid covers Memory Aid within States of Matter for GCSE Physics. Revise States of Matter in Particle Model for GCSE Physics with 13 exam-style questions and 30 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 10 of 13 in this topic. Use it for quick recall, then test yourself straight afterwards so the memory aid becomes usable in an answer.
Topic position
Section 10 of 13
Practice
13 questions
Recall
30 flashcards
🧠 Memory Aid
The six state changes — remember "MBSCE-D":
- Melting (solid → liquid, energy IN)
- Boiling/evaporation (liquid → gas, energy IN)
- Sublimation (solid → gas, energy IN)
- Condensation (gas → liquid, energy OUT)
- E... wait — reverse: Freezing (liquid → solid, energy OUT)
- Deposition (gas → solid, energy OUT)
Energy rule: Going UP the states (solid → liquid → gas) = energy IN (breaking bonds). Going DOWN (gas → liquid → solid) = energy OUT (forming bonds).
Temperature during state change: Think of a traffic jam — cars (energy) keep arriving but the queue (temperature) doesn't move until the bottleneck (bond-breaking) clears.