Catalyst: GSCE Science Review 2002 Volume 13 №02

GSCE Science Review. — 24 p.
This issue of Catalyst includes the following articles:
Fireworks: an Explosive Business
This article looks into how fireworks are made, set off and what gives them their particular colour or effect.
Where on Earth?
Spacecraft move around the Earth in many different orbits, according to their purpose. This article looks at one use of satellites - navigation.
Energy Transfer
This article shows how the loss of energy from food chains limits the number of animals that can survive on the energy fixed by a patch of vegetation.
Effects of Climate Change
Since records began 350 years ago, nine of the warmest years recorded have been since 1990. Warmer temperatures are considered as a good thing, but climate change has far reaching implications. This article investigates the impact human beings have on the global environment and the resulting climate change.
Yes, It Is Rocket Science
The launch of a space rocket has become a familiar image. But how do rockets work, and what is the future for rocket science?
Catalyst is a science magazine for students aged 14-19 years. Annual subscriptions to print copies of the magazine can be purchased from Mindsets.