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Last updated 09 August 2013, created 01 December 2009, viewed 8,841
A lesson plan to learn that not all materials will float and why.To understand that when objects are immersed in water there is an upthrust on them and that when objects float the upthrust is equal to their weight. To relate these scientific principles to lifejackets and the RNLI.
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Some good stuff on the website here to bring floating and sinking alive for a KS3 class.