Produced in 2003, these performance descriptors for chemistry science subjects at AS and A2 levels were written to indicate the level of attainment characteristic of grades A/B and E/U boundary candidates across a series of assessment objectives. It was intended that they should be interpreted in relation to the...

Produced in 2007, these performance descriptors for science subjects at AS and A2 levels were written to indicate the level of attainment characteristic of grades A/B and E/U boundary candidates across a series of assessment objectives. It was intended that they should be interpreted in relation to the content...

This podcast from the Natural Environment Research Council's (NERC) Planet Earth Online collection looks at invasive species of plants and animals. Many of them are well-known. Grey squirrels, harlequin ladybirds, buddleia, Japanese knotweed - the list goes on. Some of these aliens, or invasive species to give them...

A podcast from the Planet Earth Online collection and the Natural Environment Research Council (NERC). Richard Hollingham finds out that the freezing seas around Antarctica are not barren and lifeless. The Census of Marine Life is building up a picture of the richness and diversity of life in the world's oceans and...

In this podcast from the Natural Environment Research Council's (NERC) Planet Earth Online collection, Richard Hollingham reports from an unusual and somewhat cold location - onboard the British Antarctic Survey's RRS James Clark Ross which was stuck in the ice for two weeks 1000 kilometres from the North Pole. He...

A podcast from the Planet Earth Online collection and the Natural Environment Research Council (NERC). As the map of Earth's gravity – as revealed by the European Space Agency's (ESA) sleek GOCE satellite – comes into sharper focus, Richard Hollingham speaks to a researcher who tells us what early results from the...

A Catalyst article about Darwin's travels on the Beagle which gave him ideas about evolution. Darwin spent almost five years on board HMS Beagle as it sailed around the world. The purpose of the voyage was to map navigation channels around the coast of South America. Darwin was the ship’s naturalist and companion...

A podcast from the Planet Earth Online collection and the Natural Environment Research Council (NERC). Richard Hollingham finds out that bowerbirds are not just brilliant at making elaborate bowers, they are also good at mimicking other birds and most other sounds they hear, including human voices.

He also...

This podcast from the Planet Earth Online collection and the Natural Environment Research Council (NERC) looks at what UK farmers are doing to protect the country's vanishing bumblebees, butterflies and other pollinating insects; how scientists are trying to figure out how many types of microbes there are on our...

In this podcast from the Planet Earth Online collection and the Natural Environment Research Council (NERC), Sue Nelson goes to the Eden Project in Cornwall, southwest England and to the South Downs in southeast England to find out what butterfly research is telling us about climate change. As well as the bad news...

A Catalyst article explaining how scientists with qualifications in ecology and environmental science play an increasingly important role in assessing the human impact on the Earth. Ecology is the branch of biology that looks at how organisms, plants and animals, depend on each other and their surroundings. It also...

Catalyst Magazine is a science journal for young people aged 14-19 and their educators. It brings STEM subjects to life with insights into cutting-edge scientific research and industry R&D exploring the practical applications of complex science in the world around us. Catalyst magazine is a digital only...

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.

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This issue of Catalyst includes the following articles:

First Flight: the Wright Brothers

The first powered flight was made by the Wright brothers over a hundred years ago. Unlike the try-it-and-see methods used in many of...