Di-deoxy sequencing is a way to determine the order of bases (A,C,G and T) in a piece of DNA.  A set of 4 lanes (one for each base) is needed to sequence any given piece of DNA. Wherever a black band appears in a particular lane...

From the ABPI this interactive resource provides students with information on the cause, symptoms and treatment of diabetes. The resource is offered at two levels, for students aged 14-16 and an advanced version for post-16 students.

Please note: From 2021, Adobe has discontinued support for Flash player...

A Catalyst article about juvenile diabetes, a genetic disease also known as Type 1 diabetes, which affects over 200,000 people in the UK. Scientists are still trying to unravel its causes in order to develop improved treatments. This article describes what is being done to improve people’s understanding of the...

A Catalyst article about a brilliant new light source under construction in the heart of the Oxfordshire countryside - the Diamond Light Source. Diamond will be a source of synchrotron light. Many of the everyday commodities people take for granted, from chocolate to cosmetics, from revolutionary drugs to surgical...

This Catalyst article looks at diamond and graphite which are allotropes of carbon. Their properties which depend on the bonding between the carbon atoms are also examined.

This article is from Catalyst: Secondary Science Review 2016, Volume 27, Issue 2.

A Catalyst article about diamonds. The element carbon exists in a number of allotropic forms, but diamonds have always held a special allure, whether it be for their hardness or for their transparency. The article examines how they can be made artificially and looks at some of their uses.

This article is...

This Catalyst article looks at diamonds and shows how they have extraordinary properties: optical, thermal and when exposed to X-rays.

This article is from Catalyst: Secondary Science Review 2016, Volume 27, Issue 2.

Catalyst is a science...

From the National Non-Food Crops Centre, this factsheet looks at the uses of oils derived from plant materials. This includes:

• soaps and detergents
• healthcare
• beauty products
• feedstocks for the chemical industry
• lubricants
• fuel.

Julia is a dietitian for Addenbrookes Hospital, she discusses her role in this video. Curriculum links include malnutrition, food groups, healthy diet and nutrition.

Practical use of diffraction gratings include emission spectra as well as explorations of the wave-particle nature of light and the interference patterns that emerge.

This collection of case studies show how a wide cross section of educational professionals use and find inspiration from STEM Learning's digital resources.

These interactive notes build on the ideas covered in edition 29 of Catalyst. 

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

These interactive notes build on the ideas covered in edition 30 of Catalyst. 

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