This article explores the relationship between black holes and gravitational waves.

Catalyst is a science magazine for students aged 14-19 years. Find out more about Catalyst magazine: www.stem.org.uk/catalyst

This Catalyst article explains how chemists build molecular 'traps' to mimic the surface of a cell. To scientists, sugar is much more than a food; sugar molecules can also form polymers which act as ‘molecular bar codes’ to help cells recognise each other. The article describes how chemists made a synthetic...

Purpose: Observing changes over time can result in the collection of a lot of data. One method of keeping a central record for the class is to set up a blog or a wiki for the duration of the investigation where photographs, measurements, results tables and graphs can be collated. Using a digital record rather than...

A Catalyst article about fainting and how it can be the result of a sudden drop in blood pressure, which is often part of a shock reaction. Maintaining blood pressure is an important part of keeping the human body in balance. This article examines hypertension, living with high blood pressure, and the relationship...

A Catalyst article about the use of tiny electronic sensors to monitor the movement of people. As electronic devices get smaller and more powerful, they are finding new uses in monitoring human activity. This article describes a project to develop sensors with uses in medicine, sport and electronic gaming.

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This Core Maths task involves substituting values into the BMI formula in order to make health decisions.

An introductory ...

This Core Maths task asks the question ‘How do you know if you are really unwell?’ The activity explores the data surrounding body temperature, shows how to summarise continuous data and explores the effect on summary statistics that changing the size of the class interval has.

Body temperature:...

This booklet contains a range of suggested activities and contexts for teaching about bonding and structure at A level. Curriculum links include ionic, covalent and metallic bonding, properties, shapes of molecules, structure, dot-and-cross, intermolecular forces, properties, bond angles, and intermolecular bonding...

This booklet contains a range of suggested activities and contexts for teaching about bonding at A level. Curriculum links include covalent bonding, ionic bonding, metallic bonding, bond enthalpy, bond angles, intermolecular bonding, links between bonding and properties...

This set of resources provides comprehensive coverage of the topic of logic, Boolean algebra and simplifying expressions using Karnaugh maps. There are a series of student activities involving deriving expressions from logic gate combinations, rules of Boolean algebra and building logic expressions. 

From the National Non-Food Crops Centre, this factsheet looks at the crop Borago officinalis. This crop has been grown in the UK for a number of years as a high value, speciality oil crop. Similar to evening primrose, borage is recognised as a key source of gamma-linolenic acid (GLA), contained in the seed oil....

In response to the shortage of trained engineers, the ERA Foundation launched Born to Engineer, a campaign to inspire young people to become the engineers of the future. At the heart of the campaign is a series of high quality short films, each featuring an engineer with an inspiring story. The Born to Engineer...

Andrew Robertson is a computer engineer working at Queen Mary, University of London on music signal processing.