The ninth annual science and engineering event is at the Spa Grand Hall in Scarborough from 9-11 October.
It aims to help fill the local and national skills gap by showing students the value of careers in science, engineering, robotics and technology.
Over 3,000 students from schools and colleges around the area will attend.
Families are being invited to a free event on the first day, from 4.30-6.30pm. It will give youngsters a chance to see inspiring real-world applications of science, technology, engineering and mathematics.
Parents will be able to learn about the rewarding career opportunities available for young people in a huge range of options.
There will be useful information on education and training opportunities.
Teams will be challenged to design and create a balloon-propelled car made from everyday items.
Among the exhibitors will be major employers and organisations including Sirius Minerals, McCain, Rosti Automotive, Bosch, Kingspan, Firmac, Schneider, Plaxton, Hull University, Derwent Training, Flamingo Land, the UTC, the Sixth Form College and the armed forces.
The event began at a Plaxton showroom, run in conjunction with engineers Unison.
Since then, more than 30,000 youngsters from primary and secondary schools have visited the hands-on exhibitions; some are now working in or studying engineering.
The event is jointly organised by Scarborough Business Ambassadors, the North Yorkshire Business and Education Partnership, the York, North Yorkshire and East Riding Local Enterprise Partnership, the county and borough councils, the Spa and Sirius.
Ambassadors chairman Peter Wilkinson said: “Over the nine years of this very significant event, more than £2m has been raised in non-profit-making sponsorship to help encourage a new generation of engineers and designers and we have big plans for the 10-year anniversary.
“This is a crucial event for students to see informative and engaging displays and to talk to a superb showcase of local, regional and national businesses and organisations which all look forward to it.
“We need greater skills locally and nationally and this three-day exhibition is a perfect chance to help tackle this gap”.
For more information about the challenge and the evening session, email firstname.lastname@example.org.