The structure of the Earth

At the end of this activity, students should be able to:
– define the relative positions of the Earth, Moon and Sun in the Universe
– name the layers of the Earth
– describe the properties of the main layers within the Earth
– compare the abundance of elements in the Earth’s crust and in the whole of the Earth
– specify the sources of information used to determine the structure of the inner part of the Earth
– describe how density, pressure and temperature vary with depth from the surface
– specify the position of the magnetic poles of the Earth.