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15/04/2004
Revision support for pupils preparing for the Key Stage 3 national tests. This programme covers changing materials, chemical reactions, electricity and magnetism, energy resources and energy transfer.
Last on
Fri 7 Mar 2008
04:00
大象传媒 Two except East & Yorkshire
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Frequency and amplitude
Duration: 01:58
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Frequency and amplitude
Duration: 02:23
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Frequency and Amplitude
Duration: 01:53
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Frequency and Amplitude
Duration: 02:01