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This idea is from Sarah Shan's (follow me) mind and was lovingly penned on 26 August 2009.
To make teaching pyramids of biomass you could collect bags of leaf litter which hopefully will contain creepy crawlies and give each group a bag and get them to weigh the suspected herbivores and any carnivores and of course the producers.
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| On 31 August 2009 JC (PM) wrote: I like this idea :) |
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