This resource, produced by SEPNet and Queen Mary University of London, uses Lego to represent the building blocks of matter. Different colour and size Lego bricks are assigned to protons, neutrons and electrons. Fusion is shown by joining bricks together and fission by breaking large collections of bricks apart....

In this Core Maths activity students are asked to play a ‘ladder game’ in order to improve decision making and explore probability theory.

Fitting Numbers: Overview
This teacher guidance contains a range of information including prior student knowledge, suggested approaches and possible...

This Catalyst article explores 'Biomodels', biological species which are increasingly well-understood and which have been chosen because they can help us to test new biological theories, particularly in the field of genetics.

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

Countries charge for planes to fly through their airspace even if the plane does not land. Different countries levy different charges, therefore plane companies consider a number of different routes and calculate the associated charges with each route. The formula used to fly over Europe is considered and an...

This challenge, from Practical Action, requires students to design and build a model structure that will enable farmers to grow crops even in an area that may become flooded. A floating garden, built on a base of aquatic weeds, is a low cost and sustainable way of allowing people to grow vegetables. The resource...

A student worksheet with answers covering the topic of floating point binary representation. It contains answers so can be used for independent study.

This podcast from the Planet Earth Online collection and the Natural Environment Research Council (NERC) looks at why removing some man-made coastal flood defences might not be such a bad idea, what it is like studying gas exchange in the wilds of the Southern Ocean, and – in what could be the first case of '...

These videos highlight the problems caused by flooding in the developing world, and show how Practical Action works with local communities to help reduce the impact of future floo...

The aim of this experiment is to investigate the velocity of charged ions in an electric field. This is of the same order as the drift velocity of electrons in a wire under the influence of the same field.  A variety of analysis and conclusions that can be draw are provided.

This resource has been provided...

The network flow problem involves finding the optimum route through a flow network; a directed graph where each arc has a capacity and each arc receives a flow. Typical examples include: evacuation plans and delivery services. The problem involves students analysing the plan of a school canteen and deciding whether...

This Catalyst article looks at the use of fluoride in water supplies. The UK health secretary has announced that more water companies would be encouraged to add fluoride to the water supplies. The article looks at why fluoride is added, what the advantages and risks are and why should it be put into water.

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This poster describes four people in four different companies who all work together to produce an innovative flood defence system. To manufacture the produce requires the collaboration of designers, engineers, materials...

This Catalyst article explores how high-speed photography can reveal how mosquitoes can keep dry while flying in the rain.

To find out how mosquitoes survive impacts with raindrops, a group of engineers from Georgia Institute of Technology (USA) developed a system which allowed them to photograph collisions...