Inge Lehmann's hypothesis | Introduction to Earth systems | meriSTEM
Channel: meriSTEM Education
Date: 2021-06-10

Professor Hrvoje Tkalčić from the Australian National University (anu.edu.au) describes Inge Lehmann's hypothesis that Earth's inner core is solid, and how she came to propose this idea. 

This as part of a series of educational videos on inner Earth. This clip has been created by the Research School of Earth Sciences (rses.anu.edu.au). These resources are part of a comprehensive program, curriculum matched to the unit 'Introduction to Earth systems'. 

This video touches on the following curriculum descriptors: 
Earth has internally differentiated into a layered structure: a solid metallic inner core, a liquid metallic outer core and a silicate mantle and crust; the study of seismic waves and meteorites provides evidence for this structure (ACSES018) 

For practice questions after each video, register an account to access our free senior science courses at https://courses.meristem.anu.edu.au. Teachers can access free lesson plans and in-class activities by joining our teacher community via http://meristem.anu.edu.au/index.php/new-to-meristem/teacher-registration.

This video is part of meriSTEM Australian senior science educational resources (CC BY-NC-SA 4.0). Email the team (contact.meristem@anu.edu.au) for further information, course access and curriculum links.