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Grouping and Changing Materials
Science for seven- to nine-year-olds. How do the sorting skills of a keen eight-year-old recycler compare to the machinery of a recycling plant?
Science for seven- to nine-year-olds. How do the sorting skills of a keen eight-year-old recycler compare to the automated sorting machinery of the most advanced recycling plant in Europe? Find out how and when people first discovered that firing clay changed its properties. Solve a great mystery: why did the first little pig build his house out of straw?
Last on
Thu 3 Dec 2009
11:20
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Recycling - what's the best way to sort waste? (signed)
Duration: 02:40
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Why did the first little pig choose to build a house from straw?
Duration: 02:13
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The discovery of firing clay (signed)
Duration: 03:20
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Recycling - what's the best way to sort waste?
Duration: 02:35
