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Gas can become droplets - Online practice 2

Read the information, then answer the questions. An adult may read the instructions aloud. Show your working where asked.

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Observation card: droplets appear on the OUTSIDE of a cold closed bottle. Water vapour in the surrounding air can cool and change into liquid droplets on the surface. That change is condensation. The visible drops are liquid; water vapour itself is normally invisible. Discuss the supplied record; do not use boiling water, hot steam or electrical cooling equipment yourself.

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