All Resource articles – Page 18
View all stories of the same content type.
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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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Is all salt the same?
This resource looks at types of salt and the differences between them.
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Use 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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Use 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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Anecdotes: The Discovery of Buckminsterfullerene
The discovery of buckminsterfullerene, the third allotrope of carbon.
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Anecdotes: Thomsons - Discoverers of the electron
The discovery of the electron and the diffraction of an electron beam.
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Anecdotes: The murder of Rasputin
The story of the attempted murder of Rasputin and why it didn’t work.
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Anecdotes: In the Limelight
The background and chemistry of burning calcium with hydrogen and oxygen to make ‘limelight’.
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Anecdotes: Making Aircraft from Seaweed
Creating a balsa wood substitute from calcium alginate for World War 2 aircraft production.
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Anecdotes: Measuring Lead Levels in Hair
Measuring lead levels in hair using atomic absorption spectrometry.
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Anecdotes: Copper
The use of copper hull plating on wooden ships and the deterioration of the iron fixing bolts due to bimetallic corrosion in sea water.
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Anecdotes: Gimli Glider
The story of the Air Canada plane that ran out of fuel in mid-air and had to land as a glider, due to a units mix-up when calculating the fuel needed for the journey.
