Acids and bases – pupil resources

This collection of classroom resources features all the pupil activities from our Developing expertise in teaching acids and bases course for teachers. This collection is most valuable to those who have attended this course and wish to put into practice with their students some of the ideas and activities presented as part of that event.


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Universal indicator ‘rainbow’

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Create a ‘rainbow’ effect in a glass tube using universal indicator solution, hydrochloric acid and sodium hydroxide.

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Neutralisation circles

Drops of dilute acid and alkali are placed a few centimetres apart on a sheet of filter paper and allowed to spread out until they meet. A few drops of Universal indicator are then placed over the moist area of the filter paper and a band of colours showing the ...

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Testing the pH of oxides

In association with

The aim of this experiment is to help establish the idea that the pH of oxides vary. Students will discover that the soluble oxides of metals are alkaline and the oxides of non-metals are acidic.

Fizzy water

Equilibria involving carbon dioxide in aqueous solution

In association with

Turn a mixture of methyl red indicator and soda water from red to yellow, and create a less acidic solution as the equilibria adjusts.

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A thermometric titration

In association with

The aim of this experiment is to measure the maximum temperature reached during the reaction between hydrochloric acid and sodium hydroxide solution. The volumes that have reacted at the highest temperature, represent the ‘end point’ of the titration.

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Acid strength

This resource is designed to provide strategies for dealing with some of the misconceptions that students have in the form of ready-to-use classroom resources.

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Universal indicators

This activity develops understanding of universal indicators and single indicators. The students build up their understanding by mixing two indicators. They also develop an awareness that the observed colour may be due to a mixture of colours.

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An equilibrium involving chromate(VI) and dichromate(VI) ions

In association with

Students add ammonia to a solution of copper(II) sulfate, observe the colour changes taking place and then reverse the reaction using sulfuric acid.

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A microscale acid-base titration

In association with

In this experiment you will be using microscale titration apparatus to complete an acid-base neutralisation. The aim is to calculate the exact concentration of sodium hydroxide solution.

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pH scale basics simulation

In association with

Explore the basics of pH using this simulation. Add a variety of common solutions, modify the concentration and see the effects on pH.

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pH scale advanced simulation

In association with

Use this advanced pH simulator to view, modify, and visualise solutions with different ion ratios. Explore macroscopic, microscopic, and custom views.

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Acid-base solutions simulation

In association with

Explore the basics of pH with this simulation. Add a variety of common solutions and modify the concentrations to see the effect on pH.