All Class experiment articles – Page 7
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Class experimentDisappearing ink
Explore the reaction between acids and bases as students create disappearing ink, in this favourite classroom practical.
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Class experimentTesting salts for anions and cations
A full range of chemicals will guide students into discovering how to identify the composition of unknown substances. Includes kit list and safry instructions.
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Class experimentRubber band experiment
A rubber band, a hairdryer, and a curious mind will see students discover the principles of heat based reactions. Includes kit list and safety instruction.
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Class experimentA Cartesian diver
An old favourite experiment, the Cartesian diver is easy for students to complete. Explore important ideas that build a foundation of knowledge.
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Class experimentChemistry and electricity
Create coloured writing from acids, alkali, and salt solution, all activated through electrolysis.
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Class experimentThe oxidation states of vanadium
Introduce your students to the idea that different oxidation states of transition metal ions often have different colours, and that electrode potentials can be used to predict the course of the redox reactions. Includes kit list and safety instructions.
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Class experimentA visible activated complex
A simple demonstration of catalysis also introducing the idea of an activated complex and to allow discussion of the mechanism of catalysis. Includes kit list and safety instructions.
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Class experimentBurning milk powder
Gather a Bunsen burner, and some common powdered milk to help students grasp the ideas of surface area and reaction rates. Includes kit list and safety instructions.
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Class experimentHydrogen peroxide decomposition using different catalysts
Collect a range of catalysts to explore the decomposition of hydrogen peroxide, paying close attention to the varied reaction rates. Includes kit list and safety instructions.
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Class experimentCompetition for oxygen | reacting metals with oxides
Explore the reactions of metals when exposed to the oxide of another metal. When reactions like these occur, the two metals compete for the oxygen. Includes kit list and safety instructions.
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Class experimentAn alternative to using compressed gas cylinders
Getting gas under pressure allows exciting demonstrations such as igniting balloons filled with hydrogen gas. Includes kit list and safety instructions.
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Class experimentElectrolysis of potassium iodide solution
Find out how the electrolysis of a potassium iodide solution works with this practical. Includes kit list, and safety instructions.
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Class experimentFlame tests (the wooden splint method)
Find a new method to perform flame tests using wooden splints soaked in chlorides. Includes kit list and safety instructions.
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Class experimentMaking nylon: the ‘nylon rope trick’
The ‘nylon rope trick’ is a classic of chemistry classrooms, by mixing decanedioyl dichloride and in cyclohexane you can create a solution that will form nylon strings when floated on an aqueous solution of 1,6-diaminohexane. Kit list and safety instructions included.
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Class experimentNeutralisation circles
Support students to explore neutralisation circles in this experiment that can be performed with common chemistry classroom equipment. Kit list and safety instructions included.
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Class experimentThe methane rocket
Ignite methane with oxygen in a bottle, and amaze students with this methane rocket. Contains kit list and safety instructions.
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Class experimentThe effect of concentration on reaction rate
Students react sodium thiosulfate solution is reacted with acid – a sulfur precipitate forms. The time taken for a certain amount of sulfur to form can be used to indicate the rate of the reaction. Contains kit list and safety instructions.
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Class experimentExtracting limonene from oranges
Limonene is found in oranges, and now your classroom. Create a distillation apparatus and support students to make their own plant oils. Includes kit list and safety instructions.
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Class experimentDiffusion of gases – a safer alternative to bromine
Diffusing gases can be a tricky thing to do, but by creating an alternative to bromine, you can make a safer classroom alternative for this process. Kit list and safety instructions included.
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Class experimentReduction of copper(II) oxide by hydrogen
Determine the formula of copper(II) oxide by reducing it using hydrogen or methane, in one of three methods available to you in this practical. Includes kit list and safety instructions.