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Clip description		Keywords
	The water cycle Duration: 02:39 The water cycle is explained in detail using clear animations.	water cycle, rain, water, heat, evaporation, water vapour, rivers, sea, clouds

	Water Balance Duration: 00:45 How water is lost and gained in the body.	water, sweat, urine, biology, animal survival, bitesize

	Changing state - water and dissolved minerals Duration: 01:44 An experiment to demonstrate how minerals dissolve in water and a look at which minerals and metals are found in different types of water.	water, evaporation, condensation, water vapour, minerals

	Rivers and the water cycle Duration: 02:24 A short demonstration of the water cycle and the journey of a river.	river, rain, water, water cycle, dam, reservoir, groundwater, surface water, stream

	World water supply Duration: 01:26 An explanation of world water supply - less than 1% of the water covering the world is available to drink.	Gulf, UK, India, water, supply, sea, desalination, resource management

	The water cycle Duration: 00:52 An explanation of each stage of the water cycle.	water cycle, water, cycle, evaporation, condensation, precipitation, state

	How does a water wheel work? Duration: 02:23 Thousands of years ago, the ancient Greeks harnessed the power of water using water wheels. Many mills and industries grew up near rivers because they needed power from the water.	turbine, power, energy, water, water wheel, mill race, industry, sluices, environment

	Water hygiene in Bangladesh Duration: 02:15 A report on educating the people of Bangladesh about water hygiene.	India, Bangladesh, water, weather, disease, hygiene

	An introduction to the water cycle (pt 1/2) Duration: 03:35 An explanation of the first process in the water cycle, rain and the water table, during a visit to the Peak District.	water, peat, water table, groundwater, rainfall, water cycle, Peak District

	Finding and collecting water in Africa Duration: 01:41 An outline of the issues faced by many poor Africans when finding and collecting water.	water, supply, demand, Africa, well, resource, management, women, gender, disease, walk, rural, development, poverty

	Upthrust in salt water and fresh water Duration: 03:41 The upthrust on a model placed in fresh water and salt water is compared. One model floats and the other sinks.	float, sink, weight, buoyancy, balanced, unbalanced, weight, upthrust

	Water in the desert - Las Vegas Duration: 03:41 A look at the problems caused by the lack of water in Las Vegas and the programmes being run in schools to teach children about water conservation. (subtitled)	Mojave, desert, Las Vegas, water, conservation, environment, arid, subtitled

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