In the BBC Newsround interviews, the students - Ellie-Anne, Meriel, Ethan, Jacob and Max - spoke about how Professor Hawking inspired them to pursue science and how they will remember him.
The BBC clip, featuring the students as part of an overall piece on Professor Hawking, can be found here: http://www.bbc.co.uk/newsround/43416187
A video montage of just CAST students talking about Stephen Hawking can be found at: www.cam-ast.org.uk