All articles by Nuffield Foundation – Page 2
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Class experimentEnergy content in foods
Try this class experiment to investigate how much energy different foods contain. Includes kit list and safety instructions.
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Class experimentDetecting starch in food on a microscale
Test different foodstuffs for the presence of starch using iodine in this microscale class practical. Includes kit list and safety instructions.
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Class experimentUsing indigestion tablets to neutralise an acid | 14-18 years
Investigate and measure the neutralising effect of indigestion tablets (antacids) on hydrochloric acid in this class practical. Includes kit list and safety instructions.
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Class experimentAcid or alkali? Acidic or alkaline? A litmus paper test
Test a variety of substances to see if they are acidic or alkaline, using litmus paper as the indicator. Includes kit list and safety instructions.
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Class experimentSeparating sand and salt by filtering and evaporation
Try this class experiment to practise manipulating mixtures of soluble and insoluble materials by separating sand and salt. Includes kit list and safety instructions.
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DemonstrationExploding bubbles of hydrogen and oxygen
Create a small explosion in this demonstration by electrolysing water to produce hydrogen and oxygen bubbles. Includes kit list, video and safety instructions.
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Class experimentChemiluminescence of luminol: a cold light experiment
Show how the energy of a chemical reaction can be given out as light. Includes kit list and safety instructions.
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DemonstrationCracking hydrocarbons in liquid paraffin with a catalyst
Model the industrial process of cracking larger hydrocarbons to produce smaller alkanes in this demonstration or class practical. Includes kit list and safety instructions.
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DemonstrationTurning ‘red wine’ into ‘water’
Use acidified potassium permanganate – or ‘red wine’ – to make ‘water’, ‘milk’ and ‘lemonade’ in this engaging demonstration. Includes kit list and safety instructions.
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DemonstrationHeating group 1 metals in air and in chlorine
Use this demonstration to illustrate the reactions of lithium, sodium and potassium in air and in chlorine. Includes kit list, video and safety instructions.
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DemonstrationAmmonia fountain demonstration
Try this experiment to make a miniature chemical fountain using only soluble ammonia and atmospheric pressure. Includes kit list and safety instructions.
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DemonstrationDetermining relative molecular mass by weighing gases
Use this demonstration to determine the relative molecular masses of different gases using the ideal gas equation. Includes kit list and safety instructions.
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DemonstrationElectrolysis of molten zinc chloride
Try this demonstration to show how an ionic salt will conduct electricity when molten but not when solid. Includes kit list, video and safety instructions.
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DemonstrationThe silver mirror test with Tollens’ reagent
Try this practical to explore the mirror-making reaction between silver nitrate (Tollens’ reagent) and glucose. Includes kit list, video and safety instructions.
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DemonstrationHalogen reactions with iron wool
Illustrate an exothermic redox reaction by heating iron wool with chlorine, bromine and iodine with this demonstration. Includes kit list and safety instructions.
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DemonstrationReactivity trends of the alkali metals
Use this experiment to demonstrate the trend in reactivity down group 1 of the Periodic Table, exploring the physical and chemical properties of the alkali metals.
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Demonstration‘Magic’ writing with colour changing reactions
Reveal invisible messages or pictures drawn with aqueous solutions by spraying them with suitable reagents in this demonstration. Includes kit list and safety instructions.
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DemonstrationFloating and sinking bubbles
Make bubbles of carbon dioxide, hydrogen or methane in this demonstration exploring density, diffusion and solubility. Includes kit list and safety instructions.
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DemonstrationSodium ethanoate ‘stalagmite’
Quickly grow your own ‘stalagmite’ from a supersaturated solution of sodium ethanoate in this demonstration. Includes kit list and safety instructions.
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Class experimentFlame colours: a demonstration
Explore how different elements rect when exposed to a flame, and discuss how alkali metals, alkaline earth metals, and metal salts change the colour of fire.