Earths Structure：地球结构.pptVIP

? Boardworks Ltd 2009 * of 6 ? Boardworks Ltd 2009 * of 6 How has the Earth changed? If it was possible to dig to the center of the Earth, what would you find? What is the Earth made out of? crust – the rocky, outer layer beneath your feet. Know as the lithosphere. mantle – the semi-liquid, very high temperature layer below the crust. The cooler section near to the crust is less mobile than the hotter section next to the core (known as the asthenosphere). core – the layer at the center of the Earth. This layer is divided into two sections: the liquid, outer core and the solid, inner core. You would dig through three sections: Cross-section of the Earth Tectonic Plates Notes /college/geo/egeo2/content/animations/2_1.htm /watch?v=K8blL9Ki2mQsafe=active What is the Earth’s crust made of? Minerals and metals Many of the useful substances we get from the Earth’s crust are minerals, which contain metals. Here are the names and formulae of some of the most common minerals. Fe2O3 Al2O3 PbS TiO2 CuFeS2 haematite bauxite galena chalcopyrite rutile mineral formula metal extracted from it iron aluminum lead titanium copper * Boardworks High School Science Earth’s Structure * Boardworks High School Science Earth’s Structure Teacher notes This interactive timeline can be used to introduce work on the Earth’s structure and to help convey a sense of the timescale involved. * Boardworks High School Science Earth’s Structure * Boardworks High School Science Earth’s Structure Teacher notes This interactive activity enables students to explore the structure of the Earth. Students could be asked to highlight the similarities and differences between layers of the Earth. Students could also be asked to draw a similar diagram in their books. * Boardworks High School Science Earth’s Structure * Boardworks High School Science Earth’s Structure Boardworks High School Science Earth’s Structure Boardworks High School Science Earth’s Structure ? Boardworks Ltd 2009 * of 6 ? Boardworks Ltd 2009