Inspired by the book CHAOS making a new science by James Gleick; another good read.  The Butterfly effect (sensitive dependence on initial conditions).  Tiny changes can have large consequences following a chain of events. (this is only a small portion of what the book is about – he explores randomness, patterns, science and maths and other theories).  Again this double page has watercolour pencils, inktense pencils, black Pitt pen and some butterfly stamps.