Organised in partnership with Engineering UK, the fair showcased the wide range of opportunities offered in science, technology, engineering and maths (STEM) subjects.
Now in its fifth year, the Big Bang fair also offered the chance for businesses to engage Year 9 students in interactive workshops and activities, challenging them to think differently about STEM subjects and explain what companies and organisations in the sector do.
Among the many external organisations taking part in the event were EDF Energy, TeaBoy Games, the RAF, Royal Navy, Institution of Civil Engineers, Royal Society of Biology, Zeelandia, Colchester Zoo, Royal Astronomical Society, National Space Academy and Anglian Water.