British Universities Film & Video Council

moving image and sound, knowledge and access

Iodine Clock

Synopsis
This video shows an eye-catching colour change demonstration in which a colourless solution suddenly changes to a dark-blue after an amount of time. It is known as the ‘iodine clock’ as there is a delay before the colour change. The demonstration is particularly well-suited as an introduction to reaction rates and kinetics.
This resource, funded by the Gatsby Charitable Foundation and the Royal Society of Chemistry, was produced following National Science & Engineering Week 2013, during which teachers and technicians nominated their favourite demonstrations to be turned into video resources with accompanying written guides. [6 minutes]
Series
Get Set Demonstrate
Language
English
Country
Great Britain
Subjects
Chemistry; Education
Keywords
reaction kinetics; teaching materials

Online availability

URI
https://www.stem.org.uk/resources/elibrary/resource/34377/iodine-clock
Price
Free
Delivery
Streamed/Download

Sponsor

Name

Gatsby Charitable Foundation

Distributor

Name

STEM Learning

Record Stats

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