Catalyst Volume 15 Issue 3

This issue of Catalyst includes the following articles:

Hair

Hair can be cut and sculpted into the latest fashionable shapes and can hold fast to all the colours of the rainbow. This article explores how hair grows and how its physical structure and chemical make-up are affected by hair products.

Electricity on Tap

The UK has an extremely reliable electricity supply system. Flick the switch and light comes on. But how is this achieved?

Has the Sea Always Been so Salty?

Has the composition of sea water always been the same? The article looks at the factors which affect it.

Engineering - Careers

This article looks at careers in the different branches of engineering.

Food Webs Uncoupled

This article explores how climate change might affect food webs, with evidence from a long-term study which started in 1931.

John Snow

This article introduces John Snow and his discovery of the cause of cholera.

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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Hair

A Catalyst article about hair, how it grows, how it can be sculpted into the latest fashionable shapes and can hold fast to all the colours of the rainbow. The article explores how hair grows and how its physical structure and chemical make-up are affected by hair products.

This article is from Catalyst:...

Electricity on Tap

A Catalyst article about the UK's extremely reliable electricity supply system generated in power stations which burn gas or coal, or use nuclear fuel. The article looks at how this is achieved using high voltages and how the demands for power at different times of the day and year are met.

This article is...

Has the Sea Always Been So Salty?

A Catalyst article about the composition of sea water. The article looks at how the sea became salty, how the factors such as hydrothermal systems can affect it and it investigates whether its composition has always been the same.

This article is from Catalyst: GCSE Science Review 2005, Volume 15, Issue 3....

Food Webs Uncoupled

A Catalyst article about food chains and food webs. The article studies evidence for global climate change and considers possible causes. It also explores how climate change might affect the food web, with evidence from a long-term study which started in 1931.

This article is from Catalyst: GCSE Science...

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