A changed startYear 4 Science · T1 W7–8 · Contexts / C12 · Text version

Source review complete · local suitability still needs review.

Made-up practice story.

A fictional plan uses a covered tray with 40 mL inside and an uncovered tray with 20 mL outside. Can it isolate the cover effect? Repair it.

Make something useful

Use a small caption, arrow model, table or spoken explanation for this exact question. Keep the supplied story beside you.

Grown-up help

**Worked practice:** No. Match starting volume and place (as well as tray and review duration), then change only the cover status. Do not predict a fixed visible loss from the repaired plan. [Complete Day 36 plan](../lessons/day-36.html). This is ordinary practice, not a held assessment source. [Checked process facts and limits](../references/PRIMARY-READING.html) · F1

About this resource

Reviewed source edition

Source review is complete for this two-week edition. Local suitability and classroom use still need review. Earlier candidate or pending-review words are retained in the original files; full-year coverage, translations and audio are not claimed.

Exact source: 3531c059f44c934e1a70c6cde632792baa000c31 · 2026-10-09. Source edition, roles and hashes

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Source: https://neuroforge.io/subjectnest/library/resources/year-4/science/term-1/weeks-07-08/contexts/C12-markdown · SubjectNest by NeuroForgeIO Pty Ltd · Keep the complete source and licence companions; item rights remain separate.