A Catalyst article about iron, a relatively abundant element that humans have made widespread use of since the Iron Age (about 750 BC). The article explores the extraction of iron ore, the chemistry of iron and the blast furnace process.

This article is from Catalyst: GCSE Science Review 2006, Volume 16,...

This Catalyst article looks into Alzheimer’s disease which affects around 465 000 people in the UK, with the number of sufferers is growing as the population ages. It is a form of dementia that causes cell death in the brain and leads to memory loss and mood swings. The article investigates whether the presence of...

This activity from Science upd8 is linked to the subject of the universe which seems just too perfect! Everything about it seems tailor-made to make sure humans would evolve.

Could an advanced civilization have "fixed it" for us? Some top scientists think it's a serious possibility. In this discussion...

A Catalyst article explaining how new data suggests that it is very unlikely that life ever existed on Mars. When the presence of water was confirmed a few years ago, there was a lot of speculation that at least simple life forms had once lived there as water is essential for every known living organism. The latest...

This concept cartoon focuses on the advantages and disadvantages of nuclear energy. Concept cartoons provide an approach to teaching, learning and assessment in science, they feature cartoon-style drawings showing different characters arguing about everyday situations. They are designed to intrigue, to provoke...

This activity, from the Institution of Engineering and Technology (IET), requires students to find as many advantages and disadvantages relating to remote or robotic surgery as possible.

It is intended that students...

A Catalyst article examining if there are harmful chemicals in farmed fish. Oily fish such as salmon, tuna, sardines and mackerel contain plenty of protein, vitamins and the right sort of fats. They are rich in omega-3 fatty acids which are released when fats are digested. The human body uses these fatty acids to...

A Catalyst article about the Kepler spacecraft, which is used to look for extra-solar planets. Scientists are hoping to shine light on the age old question of life’s existence elsewhere in the Universe using a new space-based telescope named Kepler. Launched on 6 March 2009, Kepler is searching the sky for small,...

This resource was funded by the UK Space Agency and developed by ESERO-UK and CIEC Promoting Science. It is based upon the quest to discover more about the solar system through space projects such as the European Space Agency’s Aurora programme, and NASA’s Curiosity mission seeking to gather evidence of life on the...

All life forms on Earth are based on organic biochemistry. This activity requires students to analyse an unknown soil sample (just recovered from a space mission to another planet!) and look for signs of possible indicators for life. Curriculum areas covered: • Cell biology • Food tests, including starch, sugar,...

This resource explores what a vegan diet involves and considers the social and political implications of a vegan society. It is part of the collection of educational resources from The Economist Educational Foundation.

Session 1:

• Explore different kinds of diets
• Reflect...

This Science upd8 resource focuses on the chemical PFOA (perflurooctanoic acid), which is used in Teflon manufacture and is reportedly linked with an increase in the risk of developing allergies. In this activity students examine some of the evidence surrounding PFOA and consider a range of viewpoints.

This set of activities for students builds toward them being able to answer the question 'Assess whether the UK is becoming more extreme in the 21st century.'  Initially students are asked to define the terms 'rare' and 'extreme' and then order the layers of the Earth's atmosphere. This is followed by tasks to:...