The composition of blood – UKS2

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Today, in science, we have learnt about plasma, red blood cells, white blood cells and platelets. Having defined the terms and the functions they serve, we created a representation of our blood using red and white hammer beads, a chocolate sprinkle, water and custard powder. We tried to ensure that our 200ml solution was comprised of: 44% RBC, 55% plasma (of which 90% was water), 0.05% platelets and 0.05% WBCs.