The Structure of the EARTH Yr 9 DYNAMIC EARTH DO NOT COPY OR DRAW. INFO ONLY Write this down. THE EARTH. • Earth is an oblate spheroid. (Not perfectly round). • It is composed of different layers as determined by deep drilling and seismic evidence. • Studying ”earthquake phenomena” scientists discovered the different LAYERS that comprise the earth. Draw this diagram Finsished here. 18/7 Draw diagram and copy the facts. Practical: scale model of the earth • https://www.youtube.com/watch?v=AioOw81i9DU