From clay balls to the structure of the Earth

'From clay balls to the structure of the Earth'
In this ELI, a series of questions is given to provoke discussion in groups of pupils that will develop their understanding of the structure of the Earth, how some geophysical methods are used, and their thinking skills as well.

This consolidates understanding of many physical processes and characteristics including, density, inertia, magnetism, electromagnetism, sound (ultrasound and seismic) and radiation (X-raysand ionising). The best evidence we have for the core’s position and character is seismic waves, but density measurements, inertia and magnetism each contribute useful information too.
This is one of many thought-provoking activities which can be downloaded free from our website.