2x interviews
Interview 1: geological context, brief personal statement question; Interview 2: Fermi questions, diagrams
Oxbridge launchpad practice interviews, practised some graph drawing
Keep talking
Remember this advice isn't official. There is no guarantee it will reflect your experience because university applications can change between years. Check the official Cambridge and Oxford websites for more accurate information on this year's application format and the required tests.
Also, someone else's experience may not reflect your own. Most interviews are more like conversations than tests and like, any conversation, they are quite interactive.
Test taken: None
Number of interviews: 2
Time between interviews: 2 days
Length of interviews: 25 mins
Online interview: Yes
First was using maths in geological context, brief personal statement question, second was Fermi questions, diagrams
Oxbridge launchpad practice interviews, practised some maths graph drawing with brother
Keep talking, you never know if it's right or not