# A cool lunch container

Made-up practice story.

In a made-up source, a sealed cool container starts with a dry outside; later droplets appear outside. Match the state-change arrow.

## Make something useful

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



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<summary>Grown-up help</summary>

**Worked practice:** Water vapour in surrounding air → condensation → liquid drops is a supported explanation. The source comparison helps but is not a universal proof about every wet container.

[Complete Day 33 plan](../lessons/day-33.html). This is ordinary practice, not a held assessment source.

[Checked process facts and limits](../references/PRIMARY-READING.html) · F2

</details>