These student handouts contain text and questions about:

• Classifi...

Our height changes throughout the day. When we lie down at night, gravity no longer pulls in a direction to make us shorter, so our bodies stretch, and we return to our taller height again. However, astronauts who don’t experience the effect of gravity for months at a time grow taller.

In this activity...

A Catalyst article about the naming system used for biological species, devised by Linnaeus. The purpose of biological names is investigated and the article also explains how the naming system works.

This article is from Catalyst: Secondary Science Review 2009, Volume 19, Issue 3.

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Produced by the Royal Observatory Greenwich, this booklet introduces the concepts of dark matter and dark energy. Included is an online video that discusses how the Universe will end, including the role of dark matter and energy. The booklet describes the composition of the Universe, this is followed by questions...

Produced by the Biotechnology and Biological Sciences Research Council (BBSRC), these activities help students to practically investigate the process of evolution. Using the context of wheat, students are able to consider its evolution from wild grasses. This can be used to demonstrate the dramatic effect of both...

The aim of this investigation is to find the value of a number of resistors using a Wheatstone bridge.  Although this is an historical piece of equipment that has been superseded by modern methods it provides an excellent way to understand potential difference in circuits.

Sports engineers from Sheffield Hallam University and Frazer Nash are helping Team GB's wheelchair paralympians fine-tune their equipment and training regimes using advanced analysis technology. Engineers explain the relationship between science and engineering in disability sports and how inspiring it is to work...

This Catalyst article looks at agricultural plants, that are prone to many diseases, and scientists who develop new techniques to fight these diseases.

The video asks students to predict when a bungee jumper experiences maximum acceleration.  The answer is at the very bottom of the jump.  This is often counter-intuitive as the velocity at this point is almost zero. 

However, acceleration is the rate of change of velocity over time, a = ^Δv/_Δt...

This physics extension module from the Salters' Science course focuses on the physics and electronics behind each part of a television set. Production of electron beams and their deflection by electrical or magnetic fields are shown and students see how colours can be...

This Catalyst article explains why there are many anti-bacterial drugs but few antivirals. There are millions of bacteria everywhere – on skin, in the gut, and on food. Bacteria have been troubling human beings for as long as they have been around, so a lot of effort has been directed into finding ways to fight...