The main presentation is a PowerPoint with animated sequences showing how seismic activity reveals the layered structure of the Earth. Support Material Readme (instructions for whole lesson) Learning Outcomes (PowerPoint) Starter Activity (PowerPoint and Worksheet) Main Activity (PowerPoint with worksheets and answer sheets) Lesson Notes (hand-out) Plenary Activity (PowerPoint and worksheet) It is intended for all science teachers but particularly those who are not physics specialists. It is, primarily, aimed at 14 to 16 year old pupils but can also be used for younger pupils. Normally, the activities would fill a 45 to 60 minute lesson but could be spread over two lessons if need be. If you buy this resource, please print the Readme document as it contains the instructions and details of the files included. Learning Outcomes The learning outcomes are based on Bloom’s taxonomy of hierarchical classification: knowledge, comprehension, application, analysis, synthesis and evaluation. The lesson title and learning outcomes are: What is the Earth’s structure and how is it known? Learning Outcomes Knowledge to identify and describe the layered structures within the Earth Comprehension to explain how the outer core’s structure is known through seismic activity Differentiation The activities have varying degrees of differentiation; please refer to the Readme document.