🧪 Horizon: The Experiment Report
Third lesson of the science module. Learners narrate a live mini-experiment — does temperature change how fast sugar dissolves? — using the fixed report skeleton: a testable hypothesis (If…, then…), a Method in the past passive with sequencers, observations in past simple with exact numbers, and a hedged causal conclusion (This suggests that… because…). In the story, Sam’s kitchen narration (“I chucked sugar in both”) is upgraded live into lab voice, Marco lobbies for the vinegar-and-baking-soda reaction, Aylin defends numbers over feelings, and Priya rescues the conclusion from “this proves warm water is magic”.
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Lesson Plan
- Your last school experiment — what did you find out?
- Watched versus observed: when English puts on a lab coat
- Kitchen voice versus lab voice
Key Vocabulary
Grammar Points
- Method sections use the past passive — was/were + past participle: Two glasses were filled; the water was heated to 40 °C — never the bare verb (was heat ✗)
- A testable hypothesis uses the first conditional: If + present simple, will + verb: If the water is warmer, the sugar will dissolve faster
- Observations stay in past simple with exact numbers (The grains sat on the bottom for three minutes); interpretation is kept out of them
- Honest conclusions hedge with present-tense reporting language: This suggests / appears to show that… because… — proves is reserved for repeated, sufficient evidence
- Sequencers organise procedure: First, Next, Then, Finally
Prerequisites
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