This video for a-level and GCSE high ability students looks at how we derive units.  It looks at why speed can be measured in m/s and then goes onto to look at the units for force using F=ma and also why we use Joules for energy.  It also discusses the seven main base units and how all units are derived from these...

Julia is a dietitian for Addenbrookes Hospital, she discusses her role in this video.

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This A-level tutorial video follows on from the the distance, speed and time video.  It looks at the terms displacement and velocity and how they differ from speed and time.  An example of a displacement / time and velocity / time graph is given and discussed.  A...

With this a-level video tutorial, the presenter talks about how we get the equation speed = distance / time and then looks at the differences between a distance / time and a speed / time graph.  It also demonstrates what the area under the graph represents as well as the gradient.  This can be followed by the...

This video asks people if they believe cell phones can cause cancer.  It then considers the available evidence logically, that is types of radiation emitted by a cell phone (non-ionising) and the power rating to conclude that the radiation should not be harmful. However, recent evidence suggests that heat-shock...

Video from the Big Picture issue on Fat, showing an experiment to discover if we favour fatty foods.

This video demonstrates how applying pressure to ice melts it, yet on removal of the pressure the ice re-freezes.  This is called regelation.

Scottish Higher Qualifications: English, Chemistry, Biology, Geography, Economics

Computer modellers use computers to help them understand how the world works and to help predict what might happen in the future. Sea ice modellers use computer software to simulate how ice freezes, melts and moves and how different things such as ocean temperature affect it. A Levels: Maths, Further Maths, Biology...

Marine biologists study organisms in the world's oceans, ranging in size and complexity from viruses to whales. They examine how these organisms interact with the environment and with each other and measure the effects of human activities and environmental changes on marine ecosystems. A Levels: Biology, Maths,...

Microbiologists study microorganisms including bacteria, viruses, fungi, algae and protozoa. They are involved in many areas of work, including pharmaceuticals, cosmetics, water and agriculture. A Levels: Biology, Maths, Chemistry

Geosciences, or geology, are the scientific study of the structure, evolution and dynamics of the earth and its natural resources. A Levels: Biology, Geology, Chemistry