All Experiment articles – Page 12
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ExperimentWhat are the dissolved solids in seawater?
Analyse the salts that crystallise from evaporating seawater, illustrating cation and anion tests in this demonstration. Includes kit list and safety instructions.
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ExperimentThe properties of hydrogen chloride
Use this demonstration and practical to investigate properties of hydrogen chloride, such as its solubility in water. Includes kit list and safety instructions.
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ExperimentThe reaction of aluminium and copper(II) sulfate
Try this practical or demonstration to illustrate the displacement of copper from copper sulfate using aluminium foil, with kit list and safety instructions.
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ExperimentCannon fire
Increase the rate of burning with the inclusion of oxygen, in this loud exothermic practical
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ExperimentReacting zinc and copper(II) oxide
Illustrate competition reactions using the exothermic reaction between copper(II) oxide and zinc in this class demonstration. Includes kit list and safety instructions.
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ExperimentMicroscale reactions of positive ions with sodium hydroxide
Try this microscale practical exploring the reactions of various positive ions with sodium hydroxide. Includes kit list and safety instructions.
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ExperimentAllotropes of sulfur
Use this practical to explore the changes in the colour and consistency of sulfur as you heat it, melt it and eventually boil it. Includes kit list and safety instructions.
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ExperimentThe structure and properties of chocolate
Investigate how melting chocolate changes its structure and affects properties like taste, texture and melting point. Includes kit list and safety instructions.
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ExperimentMaking plastic from potato starch
Try this class practical to make a plastic using potato starch and investigate the effects of adding a ‘plasticiser’. Includes kit list and safety instructions.
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ExperimentThe rate of reaction of magnesium with hydrochloric acid
A class practical on reacting magnesium with hydrochloric acid and how to measure the rate of reaction. Includes kit list and safety instructions.
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ExperimentMaking and testing ammonia
In this experiment, students make ammonia, investigate its solubility in water and test its alkaline nature. Includes kit list and safety instructions.
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ExperimentFermentation of glucose using yeast | 14–16 years
Use this class practical to investigate the fermentation of glucose by yeast and test for ethanol. Includes kit list, safety instructions, questions and answers
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ExperimentDiffusion of gases: ammonia and hydrogen chloride
A demonstration to show the diffusion of gases, using ammonia solution and hydrochloric acid. Includes kit list and safety instructions.
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ExperimentMaking magnesium carbonate: the formation of an insoluble salt in water
Students react magnesium sulfate and sodium carbonate to form magnesium carbonate, which is insoluble in water. Includes kit list and safety instructions.
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ExperimentRecovering water from copper(II) sulfate solution
Try this practical to introduce students to aqueous solutions by distilling water from copper(II) sulfate solution. Includes kit list and safety instructions.
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ExperimentThe effect of pressure and temperature on equilibrium | Le Chatelier’s principle
Try this demonstration to explore the effects of pressure and temperature on an equilibrium mixture with your students. Includes kit list and safety instructions.
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ExperimentThe effect of concentration and temperature on an equilibrium | Le Chatelier’s principle
Try this demonstration to illustrate how changing chlorine concentration or temperature shifts the position of an equilibrium. Includes kit list and safety instructions.
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ExperimentEstimating the concentration of bleach
Compare the chlorine content and concentration of sodium hypochlorite in different bleaches in this class practical. Includes kit list and safety instructions.
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ExperimentTesting for catalase enzymes
Try this class experiment to detect the presence of enzymes as they catalyse the decomposition of hydrogen peroxide. Includes kit list and safety instructions.
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ExperimentReactions of chlorine, bromine and iodine with aluminium
Try this demonstration to produce some spectacular exothermic redox reactions by reacting aluminium with halogens. Includes kit list and safety instructions.