A clock with a seconds hand is shown as it advances for 15 seconds. The challenge is to ‘graph the story’. This video emphasises the importance of scales. In this introductory video the answer is then displayed showing a linear relationship.

Time video

In this Science upd8 activity, students evaluate evidence from a recently discovered mummy to work out how it lived and how it died. Through so doing, they learn about the function of its preserved tissues and organs.

Purpose: An important form of investigation that can be difficult to manage in classrooms is ‘observation over time’. Fixed length lessons reduce the number of possibilities for observation to those changes that occur within minutes rather than hours. One solution to this problem is to use time lapse photography to...

Tin cans come in a variety of shapes and sizes. In this activity students consider the net of a tin can, the formula for the total surface area and the formula for the volume of the can. The first problem requires students to express the total surface area as a function of r by eliminating h. The second problem...

A Catalyst article about neutrinos. Neutrinos are fundamental particles. They are tiny, a neutrino has a mass about one-millionth of the mass of an electron, and they have no electric charge. This article looks at the detection of these elusive particles which requires the use a giant detector. The one described is...

A Catalyst article about the study of electrical activity of the brain during sleep. The article looks at brain waves, REM (Rapid Eye Movement) and the effects of sleep deprivation.

This article is from Catalyst: Secondary Science Review 2008, Volume 18, Issue 4.

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This mystery explores solubility, ionic ...

This Catalyst article investigates tokamaks. A 'tokamak' is a device for generating high-temperature plasma in which nuclear fusion can occur; this may form the basis of a new generation of power stations.

The article is from Catalyst: Secondary Science Review 2015, Volume 26, Issue 1.

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This worksheet challenges students to answer a series of questions themed around tolerances. It provides worked examples, examiners top tips and answers to each question. The resource is useful for teaching maths content in design and technology, or as a maths activity sheet.

A question posed by this resource from CensusAtSchool, investigating whether probability relates to reality. Real data is contrasted with the theoretical probabilities of the number of boys in a family, using the assumption that the probability of having a boy is 0.5. Equally likely outcomes, combined events, tree...

This activity, from the Institution of Engineering and Technology (IET), requires students to design a magnetic tool holder for a robot surgeon.

It is intended that students will:
• Appreciate the potential of...

This activity, from the Institution of Engineering and Technology (IET), requires students to compete to make the strongest electromagnetic tool holder for a surgeon's robotic arm.

It is intended that students will be...