Support aural learners through clear spoken narration of each demonstration — keeping the recording and judgement individual.
Narrate the process, not the answer
As you run each demonstration, describe the actions and draw attention to observable details aloud: "I'm heating the butter now — watch what happens to its shape and colour." This helps students who process by ear know where to look, without giving the reversible/irreversible call.
Provide a quiet think-time cue
After each demonstration, give a spoken "10 seconds to picture it, then record" cue. The verbal pacing helps aural learners hold the observation while they write.
Pre-task talk warm-up
Before the assessed task, a brief paired recap aloud — "tell your partner the four signs of a chemical change" — re-activates the vocabulary by ear.