It's a pyramid! They make an actual square base pyramid of biomass. Photocopy onto card. Three faces are blank, one face has an example food chain with number of organisms.
Will need full explanantion of what biomass is and how it increases up the pyramid, so as not to get confused with pyramid of numbers.
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I've done my own version of this in the past and Y7 students really enjoy it. Beware though, half the class then started drawing pyramids or number as actual pyramids / triangles.
A great find!
Very useful and can be adpated to your own activities. Thaanks!
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