Richard Hammond demonstrates the effect of water on other physical objects.

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Richard Hammond demonstrates the effect of water on other physical objects. Water weighs around one kilogram per litre. The annual rainfall of England's wettest place, Borrowdale in the Lake District, is placed into the bucket of a machine. This is then dropped onto a car, crushing it. He moves on to demonstrate the effect of air resistance on raindrops. Richard builds a series of sand castles at the base of a tower in Bristol. When water is dropped from waist height the sandcastle is crushed. When dropped from height (30 metres), the water has less effect. The effect of air resistance on water is explained.

This clip is from the BBC series Wild Weather with Richard Hammond. This programme attempts to uncover, for the first time on television, the incredible weather events happening right in front of us. Presenter Richard Hammond finds out what wind actually is, shows how to predict the weather by watching the clouds, finds out how rain can crush a car but not a sandcastle, and lights a giant hotplate in a UK quarry to create his very own thermal. Students will see Richard perform experiments to create his own rain, stand in the middle of a tornado and witness a thunderstorm indoors.

For more clips from Wild Weather with Richard Hammond: http://bit.ly/TeachWildWeather
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For Class Clips users, the original reference for the clip was p02ldyxz.

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Teaching Geography or Physics?

KS3: This clip is a demonstration of water’s power and weight. Pause just before the bucket is tipped in order to ask class to make predictions on what will happen to the car. This is a nice link to science / physics as well as geography. Looking up precipitation information for Borrowdale in the Lake District, why doesn’t the rain crush us? Then play the Bristol part of the clip.

GCSE students could explore various sources of information in order to produce an explanation of why Borrowdale is the wettest place in the UK, linked to relief rainfall and the rain shadow. What are the other climate variables there annually? Science students could talk about reliable experiment design.

This topic appears in Geography and Physics at KS3 and KS4 in England, Wales and Northern Ireland and National 5 in Scotland. At GCSE it appears in AQA, OCR A, EDEXCEL, EDUQAS, WJEC and CCEA, in SQA at National 5.

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