All Class experiment articles – Page 13
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Class 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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Class 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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Class 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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Class 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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Class 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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Class 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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Class 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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Class 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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Class 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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Class experimentMaking glass
Try this class practical to make samples of glass using lead oxide, zinc oxide and boric acid. Includes kit list and safety instructions.
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Class experimentMaking solder as an alloy of tin and lead
Try this practical to make solder by heating together the metals tin and lead before investigating the alloy’s properties. Includes kit list and safety instructions.
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Class experimentReacting copper(II) oxide with sulfuric acid
Illustrate the reaction of an insoluble metal oxide with a dilute acid to produce crystals of a soluble salt in this class practical. Includes kit list and safety instructions.
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Class experimentPVA polymer slime
In this fun class experiment student will make slime by adding borax solution to PVA. Includes kit list and safety instructions.
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Class experimentWhat causes iron to rust?
Use this class experiment to help students investigate what conditions are needed for iron to rust. Includes kit list and safety instructions.
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Class experimentThe fractional distillation of crude oil
Try this class practical or demonstration to simulate the industrial fractional distillation of crude oil. Includes kit list and safety instructions.
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Class experimentRate of reaction of potassium manganate(VII) and oxalic acid
Investigate the effect of surface area or concentration on rate of reaction using oxalic acid in rhubarb and potassium manganate(VII). Includes kit list and safety instructions.
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Class experimentExothermic or endothermic? Classifying reactions
Decide whether various reactions are exothermic or endothermic by measuring temperature change in this practical. Includes kit list and safety instructions.
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Class experimentIdentifying the products of electrolysis
Try this class experiment to carry out the electrolysis of various solutions and investigate the products formed. Includes kit list and safety instructions.
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Class experimentDisplacement reactions between metals and their salts
Learners will investigate competition reactions of metals and determine a reactivity series of the four metals used. Includes kit list and safety instructions.
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Class experimentA thermometric titration
Use this class practical to practise locating end-points in titration by measuring temperature during the reaction. Includes kit list and safety instructions.