A Catalyst article exploring the testing of new medicines to see if they are safe for people to take. The effects on cells of a potential new drug are investigated using tissue cultures of human or animal cells. Some tissue cultures use fresh tissue samples, but most come from well-established laboratory cell...

Machine learning is a process where machines or rather, computer code running on machines, is created that allows the code to develop its own methods to categorise information based on data that we feed into it.  Scientists at the University of Oxford are working on...

Several different treatments are used to autolyse yeast cells. The viability of the autolysed yeast is then tested by: plating out on agar; testing for dehydrogenase activity; microscopic examination with methylene blue.

This interactive file deals with various angles and lengths within tetrahedrons.

The first sheet shows the diagram of a regular tetrahedron. Various sides and angles need to be calculated using Pythagoras Theorem and...

An average of 39 million tonnes of untreated sewage overflows into the River Thames each year from London's Victorian sewerage system. This collection contains series of teaching and learning resources linking mathematics and science to the Thames Tideway Tunnel project, a major new sewer that will help protect the...

In this activity, students investigate the three main types of memory - sensory, short-term and long-term. An explanation is given for each one and linked to a memory experiment. Students are also given five memory tasks to complete which include looking at factors that affect peoples' memories and ways in which to...

The book "The Magic of Computer Science" contains a variety of tricks that relate to various elements of computer science.

In this resource, the algorithm...

Carom Maths provides this resource for teachers and students of A Level mathematics.

This presentation begins by introducing students to the technique used to find the radical of an integer before progressing to the ABC conjecture, which is recognised by mathematicians as being an important unsolved problem...

This activity, from the Royal Observatory Greenwich, looks at Hubble’s law, whereby students use real data from the Sloan Digital Sky Survey to plot a graph from which they can obtain the Hubble constant. Students then look at the possible sources of error in their data and use this to calculate the uncertainty in...

This collection from Plus Magazine was produced as the result of a collaboration between Plus and Arctic Survey Education and provides a selection of teachers' resources and students' worksheets.

On 1 March 2009, three intrepid polar explorers, Pen Hadow, Ann Daniels and Martin Hartley, set out on foot on a...

MEI Online resources for Edexcel FP1 provide a selection of materials for the modulus-argument form of complex numbers. These include thorough notes, a study plan, additional exercises, a multiple choice test and an extension piece of work.

This book from the SISCON series tells the story of the atomic bomb: from early discoveries in nuclear physics; development of the first bombs and their use in Hiroshima and Nagasaki; to fears in about nuclear warfare.

The work on the third edition of Nuffield Advanced Chemistry led to significant, but not drastic, changes in the content and presentation of the course from the revised edition. An important change was to start the revised course at the level of knowledge and understanding of chemistry that could be expected from...

The editors of the Fourth Edition of Nuffield Advanced Chemistry consulted widely and revised the topics in the light of detailed comments and advice from teachers. The team also had to take into account the subject criteria from the Qualifications and Curriculum Authority (QCA) when planning the number and...