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SSS094 - Heating flammable liquids and solids in test tubes.
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Clear instructions and advice on how to safely heat flammable materials in test tubes.
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PP088 - Testing leaves for starch
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A simple protocol used to show that leaves have been photosynthesising by testing for starch.
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GL107 - A Visking tubing model of the gut using invertase
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Provides detailed instructions for a simple practical which illustrates some of the working of the gut. Uses sucrose as the starting substrate and DNS reagent or glucose testing strips to identify the.. more
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PP036 - Exploring equilibria: cobalt(II) complexes
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A relatively simple activity involving two vividly coloured cobalt(II) complexes in solution can be used to illustrate the effects of changing conditions (concentration, temperature) on a reaction at .. more
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PP018 - Preparation of 2-chloro-2-methylpropane
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The synthesis and purification of a liquid organic compound is described. Practical techniques include, liquid-liquid separation, washing, drying and distillation. The % yield of the organic product c.. more
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PS080 How to use a model steam engine
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An illustrated guide to checking and using the traditional steam engine found in many schools, often unused in the back of a cupboard.
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TL007 - Making soap
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The traditional procedure to make soap is hazardous because it requires heating quite concentrated sodium hydroxide solution, typically about 5 M (CORROSIVE) with the oil or fat.This guide covers two .. more
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PP139 - The preparation of hydrated zinc sulfate crystals
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Preparing salts is a common activity at GCSE level, bringing together many useful skills. Making copper sulfate crystals (PP027), which involves making copper(II) sulfate from copper(II) oxide, is the.. more
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PP010 - a colourful catalysis reaction using cobalt(II) ions
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This activity dramatically shows the effect of a catalyst, cobalt(II) ions, on a reaction. Other characteristic properties of transition metals (eg, coloured ions, different oxidation state) can be ob.. more
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Bulletin 140 - Spring 2011
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This edition includes notes on science project work, A level investigation skills, and the Getting Practical project. There are warnings about starting pistols, exploding thermometers and disposal of .. more
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Showing results 1 to 10 of 83
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