Resources
Dangerous Cold
In this activity students consider the questions: How does heat energy move around? How can we model the flow of energy and changes in temperature? What can be done to prevent hypothermia? Why do we need to try so hard to stay at the right temperature? In order to survive and be comfortable in hot or cold...
Dangerous Rain
In this activity students consider the questions: Where does rain water go? How can we model the flow of rainwater in real life? What can be done to prevent flooding? When is rain dangerous? Where do floods come from? How can we reduce the damage that flooding causes? Over the last decade some parts of Europe have...

Harey, the hare-brained rabbit, watches TV all day and eats all the wrong foods. He becomes unhealthy and overweight. He has trouble getting through doorways, too
This item is one of over 25,000 physical resources available from the Resources Collection. The Archive Collection covers over 50 years of curriculum development in the STEM subjects. The Contemporary Collection includes the latest publications from UK educational publishers.
Dark Energy
This animated clip describes how Einstein used the cosmological constant as a way of keeping his model of the Universe static but that Hubble showed that the Universe was actually expanding. However, evidence now tells us that since the universe is accelerating in its expansion, a new term for what is causing...
Dark Matter
This animated clip explains how Fritz Zwicky noticed that galaxies were missing matter and called this matter, dark matter. Zwicky realised that looking at gravitational lensing of light from distance galaxies would allow scientists to calculate how much dark matter there is but there still remains the problem of...
Dark side of blue light
There is scientific evidence that the blue light emitted from mobile devices and computer screens disrupts sleep by delaying the body clock.
In this activity students carry out an investigation using filters to find...
Darkness dwellers
This resource requires children to imagine the world without any light. Drawing from nature for ideas and inspiration, they design ‘stick people’ with special features and powers to live in a world of darkness. The lesson is best done in a woodland or...
Dartboard
This resource begins by considering how the dartboard and the game of darts, can be used in practising arithmetic. Students are asked to consider the different ways each score1 to 60 can be achieved using a single dart. Students are asked to find the maximum and minimum score achievable with 1, 2 and 3 darts.
...Darts
This resource from Teachers TV features Philip New, Head of Year Six at Woodland Middle School, as he utilises an interactive dart board to develop students' mathematical skills. This idea stems from a comment made by Bobby George, a champion darts player, when he said in an interview that the future of darts...