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Showing results 1 to 10 of 42
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SRA035 - The burning pencil demonstration
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A pencil is sharpened at both ends and crocodile clips attached at each end. These are connected to a low voltage power supply. The voltage is increased and the wooden casing quickly starts to produce.. more
words matched: pencil
Members only resource
PP144 - Paper chromatography; biro inks
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This practical procedure outlines a simple, inexpensive and successful method for carrying out paper chromatography. The activity demonstrate how chromatography can be used to analyse biro inks.
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PP062 - Paper chromatography of amino acids
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Amino acids can be identified and separated using paper chromatography, a cheaper alternative to using TLC. The amino acids need to be stained with ninhydrin to reveal the spots after the run.
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PP056 - Thin layer chromatography of plant pigments
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Thin layer chromatography is a quick and effective method of separating pigments within leaves. The pigments run clearly on the chromatogram with little outward spread, allowing Rf values to be calcul.. more
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Members only resource
PP049 - Paper chromatography; the separation of pH indicators
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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 .. more
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PP133 – Transition activity: Exploring colour changes
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During this challenge-based activity visiting children learn to follow a written method and pipette dropwise without contaminating samples.
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PP147 - Preparation of Aspirin
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The procedure uses many important skills suitable for post-16 students, including following instructions, safe use of chemicals and equipment, chromatography techniques, recrystallization and melting .. more
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Members only resource
PP126 - Transition activity: Learning practical work skills through activities using matches.
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A simple yet engaging set of 3 activities which use matches (rather than Bunsen burners) for a transition event.
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Bulletin 157 - Autumn 2016
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• 'Required' practicals for A Levels• Dissecting whole guts of animals• PS081 Fireworks & Explosives - Update• The Thermite Reaction - new method!• HAZCARDS - Now fully revised and available to bu.. more
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Tech Tip - Keeping track of practical resources
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A few ideas to help teachers & technicians quickly check that practical resources are returned at the end of the lesson.
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Showing results 1 to 10 of 42
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