This Catalyst article explores whether the use of mobile phones increases the risk of cancer, including a recent study from Denmark which investigates the issue further.

This article is from Catalyst: Secondary Science Review 2011, Volume 22, Issue 2.

...

In this activity students try several different experiments and then write true and false explanations. Explaining to others in the club, they must decide on the true answer.

In this simulation students can see how light knocks electrons off a metal target, and recreate the experiment that spawned the field of quantum mechanics.

[b]Sample Learning Objectives include:[/b]

*Visualize and describe the photoelectric effect experiment.

*Predict the results of experiments...

This is a common investigation using a bulb and coloured filters to determine the value of Planck’s constant (h).  An oscilloscope is required and advice on the settings required are given.

This resource has been provided by Keith Gibbs.

This task is designed to assess how well students understand ratio and arranging areas.

The task shows a large photograph with its width and height marked. Two arrangements are shown for printing the large photograph together with two smaller copies:

• Two smaller photographs are placed with their...

This book looks at several aspects of photography: * How film takes a picture * The pinhole camera * A simple camera * Using a commercial camera * Developing the film * Making positive prints * Enlarging * Uses of photography Photography was one of the Science at Work series. All the booklets in the series were...

The work suggested in this Nuffield Working with Science unit was intended to teach students how to process film and photographic paper at a relatively simple level, and to understand some of the principles behind the processes. Teacher were encouraged to make students...

This Catalyst article looks at the process of photosynthesis, by which plants make a range of biochemical compounds. The article explains how photosynthesis actually ties in with growth. Respiration is happening all the time in all cells in all living organisms. Taken on its own, photosynthesis adds materials to...

In this practical investigation, students measure the rate of photosynthesis in plants from different habitats (sun and shade), and then consider what this demonstrates about leaf adaptation.

When leaf discs are...

The Earth's population is increasing, but at the same time the amount of suitable farmland is decreasing due to factors including climate change and the growth of cities. Producing sufficient food to feed everyone is a global challenge. This activity sheet builds on students' knowledge of photosynthesis and plant...

In this activity students create a graphical ready reckoner to assess physical fitness. The challenge is to construct the ready reckoner and ultimately use it in practical situations. Students are required to plot straight line graphs.

Testing physical fitness is the focus of this resource, from the Centre for Innovation in Mathematics Teaching. Students are provided with sample data, which they apply to the Gallagher and Brouha Test to calculate the fitness index and determine appropriate grades. The resource is designed to prompt class...