All Experiment articles – Page 15
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ExperimentIdentifying the products of combustion
Illustrate the presence of water and carbon dioxide in the products of hydrocarbon combustion in this demonstration. Includes kit list and safety instructions.
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ExperimentThe composition and formula of water
Try this demonstration to determine the formula of water through the reaction of copper(II) oxide with hydrogen. Includes kit list and safety instructions.
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ExperimentPreparing and using cobalt chloride indicator papers
Make your own cobalt chloride indicator papers, which can be used to test for the presence of water. Includes kit list and safety instructions.
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ExperimentThe migration of ions during electrolysis of potassium manganate(VII)
Try this class practical to investigate the migration of ions during electrolysis as evidence for the ionic model. Includes kit list and safety instructions.
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ExperimentReactions of chlorine with water or halide ions
Generate chlorine gas on a microscale and investigate its reactions with water or halide ions in this class practical. Includes kit list and safety instructions.
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ExperimentChromatography of sweets | 11–14 years
Try this class practical to carry out chromatography using dye from different coloured M&M’s®. Includes kit list and safety instructions.
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ExperimentHydrogels in plant water storage crystals
Investigate plant water storage crystals as one application of hydrogels in this fun class practical. Includes kit list and safety instructions.
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ExperimentInvestigating hydrogels in nappies and hair gel
Investigate hydrogels as polymeric smart materials in this series of activities using nappies and hair gel. Includes kit list and safety instructions.
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ExperimentThe reactivity of iron
Illustrate iron’s position in the reactivity series by heating it with copper and magnesium oxides in this practical. Includes kit list and safety instructions.
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ExperimentExothermic metal–acid reactions
Use this class practical to explore the temperature changes resulting from adding different metals to hydrochloric acid. Includes kit list and safety instructions.
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ExperimentSilver and lead halides
Try this practical or demonstration to produce silver and lead halides in a series of precipitation reactions. Includes kit list and safety instructions.
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ExperimentThe ‘breathalyser’ reaction | 16–18 years
Try this demonstration to recreate an early ‘breathalyser’ test, passing ethanol vapour through potassium dichromate. Includes kit list and safety instructions
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ExperimentGenerating, collecting and testing gases
Read our standard guidance on generating, collecting and testing gases during practical experiments, including carbon dioxide, hydrogen, oxygen and chlorine.
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ExperimentComparing heat energy from burning alcohols
Investigate the amounts of heat energy produced by the combustion of different alcohols in this class experiment. Includes kit list and safety instructions.
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ExperimentThermal decomposition of nitrates: ‘writing with fire’
Make an invisible message ‘glow’ by applying a lighted splint to filter paper treated with sodium nitrate in this demonstration. Includes kit list and safety instructions.
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ExperimentPreparing salts by neutralisation of oxides and carbonates
Try these class experiments to illustrate the production of soluble salts from insoluble metal oxides and carbonates. Includes kit list and safety instructions.
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ExperimentDyeing three colours from the same dye bath
Show how dyeing involves chemical interactions between dyes and the molecular nature of different fibres in this demonstration. Includes kit list and safety instructions.
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ExperimentA red–blue oscillating reaction
Use this practical or demonstration to provide a visual illustration of an oscillating reaction and redox equilibria. Includes kit list and safety instructions.
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ExperimentFinding the formula of hydrated copper(II) sulfate
In this experiment students will measure the mass of hydrated copper(II) sulfate before and after heating and use mole calculations to find the formula.
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ExperimentReacting magnesium with copper(II) oxide
Illustrate reduction, oxidation and the relative reactivity of magnesium and copper(II) oxide in this demonstration. Includes kit list and safety instructions.