Catalyst Volume 24 Issue 3

This issue of Catalyst contains the following articles:

The Most Accurate Thermometer in the World

This article looks at how a highly accurate thermometer measures temperatures by finding the speed of sound in a gas.

Award-winning Models

This article looks at the work of three chemists who won the 2013 Nobel Prize for Chemistry for devising a method for producing models of complex molecules.

Essential Oils as Antimicrobial Agents

A school microbiology club investigates the antimicrobial effects of some essential oils.

Aerogels

This article investigates aerogels, which are amongst the least dense solid materials and are not much denser than air, and their surprising properties.

The Dolls of Confusion

This article describes how humans can misjudge the weights of small dense objects and large, light objects and how human perception of weight is easily fooled.

 Saving Lives While Cooking Lunch

This article investigates how a more efficient stove is an example of appropriate technology - it produces less hazardous smoke and can generate electricity too.

Thorium - the Perfect Nuclear Fuel?

Thorium can be used as the fuel in a fission reactor - and it appears to be much safer than uranium.

Try This - the Thermal Decomposition of Sodium Hydrogen Carbonate 

Bicarbonate of soda decomposes on heating - it is used in the making of cinder toffee.

Scientific Volunteers

This article looks at volunteering opportunities for students where can use their skills to help communities around the world.

Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from Mindsets.

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The Most Accurate Thermometer in the World

Almost every scientific experiment or industrial process requires a measurement of temperature. For example, the specification of the length of an object is meaningless without reference to the temperature at which the measurement was made. And all chemical and biological processes are intrinsically temperature-...
Publication date:
2010 to date

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Award-winning models

This Catalyst article presents the work of three chemists - Martin Karplus, Michael Levitt and Arieh Warshel - who won the 2013 Nobel Prize for Chemistry. Their work allowed the development of complex computer models of compounds and reactions.The article is from Catalyst: Secondary Science Review 2014, Volume 24,...
Publication date:
2010 to date

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Essential Oils as Antimicrobial Agents

Since the discovery of antibiotics, many people believe that the pathogenic microorganism threat to the population has been removed, with fatal infections and infectious diseases brought under control. This has discouraged research into drugs containing natural compounds such as essential oils. However, humans are now...
Publication date:
2010 to date

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The Dolls of Confusion

This Catalyst article investigates how humans can misjudge the weights of small dense objects and large, light objects and how their perception of weight is easily fooled.The article is from Catalyst: Secondary Science Review 2014, Volume 24, Issue 3.Catalyst is a science magazine for students aged 14-19 years....
Publication date:
2010 to date

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