In search of more solutions: A chemical stop-clock - iodine clock reaction

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Design a chemical stop-clock using different dilutions of two colourless solutions which, when mixed together will remain colourless for a period of time and then suddenly change to a deep blue colour.

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A chemical stop-clock - iodine clock reaction - teacher
Experiment | PDF, Size 0.27 mb
A chemical stop-clock - iodine clock reaction - student handout
Experiment | PDF, Size 0.25 mb
Index of activities and junk list final
PDF, Size 0.34 mb

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In Search of more Solutions book: £19.95

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Level

16-18 years

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Specification

Resource
In Search of More Solutions
In Search of More Solutions provides material for chemical “egg race” competitions that help to put the fun back into chemistry, and gives students that “little bit extra” to motivate them to follow a scientific or technical career.
Resource
Developing a theory
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In this practical activity, students will monitor reactions of acids and develop a theory to explain their observations
CPD
Applying practical knowledge to unfamiliar contexts
2019-09-16T09:00:00Z
Prepare students to use their learning in different situations

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