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During this challenge-based activity visiting children learn to follow a written method and pipette dropwise without contaminating samples.
words matched: indicator, pH
It is becoming increasingly difficult to determine the composition of food dyes in an unknown mixture, because formulations have been altered over time, and, as a consequence, the results never match ..
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- From the Director (the importance of practical work)- Return to school September 2020 guidance- Keeping your membership up to date- Alternatives to cheek cells- Food tests- Chemical store poster (go..
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Guidance on how to prepare universal indicators.
words matched: indicator, pH
Guidance on how to prepare indicators for carbon dioxide.
words matched: indicator, pH
This activity can be used as an introduction to microscale drop, or “puddle” chemistry. It demonstrates that indicators do not always change at pH7.
words matched: indicator, pH
Contains a wealth of information on the various ways of measuring pH, and the advantage and disadvantage os each. Includes all sorts of background theory which will help the reader make the most appro..
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Guidance on how to prepare indicators (acid-base).
words matched: indicator, pH
Guidance outlining the different types of indicator used for making agar cubes for diffusion. It covers how to prepare, use and store the agar.
words matched: indicator, pH
This edition includes notes on confusion over universal indicators; advice on demonstrating the thermit (thermite) reaction, issues with new laboratories, and information for teachers of D&T on pu..
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words matched: indicator, pH
Showing results 1 to 10 of 237
