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This activity can be used as an introduction to microscale drop, or “puddle” chemistry. It demonstrates that indicators do not always change at pH7.
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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.. more
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Another jam packed edition of the Bulletin :-- Fake news from the Director - Update on the renewal process- Who pays for CLEAPSS membership- Gatsby project update- Using light bulbs in biology- Online.. more
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Adaptable worksheet for PP057.
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This edition includes notes on the introduction of Student Safety Sheets, a new standard for eye protection, a brief comparison between ducted and recirculatory fume cupboards, problems with (so-calle.. more
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Index to currently published guidance on the preparation of specific solutions and other reagents. Includes a summary Contents List giving the dates of the most recent versions of recipes. Note: this .. more
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A microscale activity which demonstrates a number of chemical reaction with ammonia. Because this is microscale, quantities of chemicals used are tiny,  making disposal and clearing up very easy.
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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.. more
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Basic recipe for making agar, with additional details for making a range of agars used in science practicals, but not including those used in microbiology. (See GL229 for those.)
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How to carry out this classic activity
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Showing results 1 to 10 of 166
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