Lesson title: Energy Flows – Pyramids of Biomass
Class: 11a2           Date: 7th December Period:3                        ...
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Energy Flows – Pyramids Of Biomass

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Energy Flows – Pyramids Of Biomass

  1. 1. Lesson title: Energy Flows – Pyramids of Biomass Class: 11a2 Date: 7th December Period:3 No. Pupils:16 Lesson Objectives (WALT):  To explain how solar radiation is the source of all energy for living organisms and how this is incorporated into biomass Time Activity Content / Notes (key points, questions to ask, assessment of learning, safety) Before Have all the equipment where needed. entry 11.14 Starter 15 Recall a simple food chain and describe the terms used e.g. producer, mins herbivore, carnivore. Define biomass. (use the ‘What am I?’ ppt on e-science) 11.29 Main Use the simulation ‘Pyramids of Biomass’ on e-science to show how food activity 1 chains can be represented as pyramids of numbers and biomass. Go mins through the issues with pyramid of number with reference to oak trees extra and draw some in books. Draw some unusual pyramids of numbers and get students to relate to a food chain. E.g. lettuce, aphid, tit, hawk Complete work sheet 11.54 Plenary Work through the pages from NEB 10 mins Extra work Risk Assessment Homework Vocabulary (key words) Complete exam style questions due in 14th Differentiation Links with previous lessons Specification Links Radiation from the Sun is the source of energy for most communities of living organisms. Green plants capture a small part of the solar energy which reaches them. This energy is stored in the substances which make up the cells of the plants. The mass of living material (biomass) at each stage in a food chain is less than it was at the previous stage. The biomass at each stage can be drawn to scale and shown as a pyramid of biomass. Equipment New Edition Biology – if poor weather Pyramids of numbers and biomass

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