All Resource articles – Page 33
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ResourceThe structure of ice and water
A worksheet exploring the structural differences between the solid and liquid versions of this most ubiquitous compound.
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ResourceShould beans be cooked with the lid on or off?
An investigation into whether having the lid on or off affects the colour of green vegetables.
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ResourceWhat affects the colour and texture of cooked vegetables?
Practical work and questions about the effect of salt, sodium bicarbonate and calcium ions on the colour and texture of cooked vegetables.
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ResourceLow sodium salt substitutes
This resource uses a titration method to analyse the chemical composition of Lo-Salt, a reduced sodium salt alternative.
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ResourceIs all salt the same?
This resource looks at types of salt and the differences between them.
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ResourceBy how much does salt increase the boiling point of water?
This resource explores why salt is always added to the water when cooking.
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ResourceUse of salt in cooking, part 2
This resource explores why salt is always added to the water when cooking green vegetables.
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ResourceUse of salt in cooking, part 1
In this activity students devise and carry out experiments to test possible reasons for adding salt when cooking vegetables.
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ResourceThe discovery of buckminsterfullerene | Anecdotes for chemistry teachers
Listen to a 7-minute podcast telling the story of the discovery of the ’soccer ball’ carbon allotrope
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ResourceAnecdotes: Thomsons - Discoverers of the electron
The discovery of the electron and the diffraction of an electron beam.
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ResourceAnecdotes: The murder of Rasputin
The story of the attempted murder of Rasputin and why it didn’t work.
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ResourceAnecdotes: Making Aircraft from Seaweed
Creating a balsa wood substitute from calcium alginate for World War 2 aircraft production.
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ResourceAnecdotes: In the Limelight
The background and chemistry of burning calcium with hydrogen and oxygen to make ‘limelight’.
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ResourceAnecdotes: Measuring Lead Levels in Hair
Measuring lead levels in hair using atomic absorption spectrometry.