Making clouds in a bottle with a bicycle pump

Ideal to support Geography Key stage 3 – this video shows classroom experiments to make clouds, showing evaporation, changes in temperature due to pressure, and cloud condensation nuclei using a plastic bottle and a bicycle pump.

In this clip we see RMetS’ Dr Sylvia Knight demonstrates how changes in pressure result in cloud formation and how clouds need the addition of cloud condensation nuclei. Whilst we see a bigger experiment in our lab with a glass demijohn.

This short video clip has been made available by the University of Reading and comes from our successful Come Rain Or Shine Open : Understanding the Weather. A free online course developed with the Royal Meteorological Society available from FutureLearn.

Visit futurelearn .com site and search ‘Come Rain Or Shine Open : Understanding the Weather’ for the full course (free without certificates option available).

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