The Expo Day was held from 10 to 5 pm on Saturday 27 April at Circus Square Park in Bowling Green, KY.
Exhibitors participating at the 2019 Expo Day:
- Kentucky Dept. of Agriculture: mobile science activity center
- Louisville Drone Academy – Learn-To-Fly Drone workshops
- Kentucky Science Center
- Mammoth Cave National Park
- US Patent & Trademark Office
- Kentucky Thermal Imaging
- Bowling Green Fire Department – fire safety trailer
- Girl Scouts of Kentuckiana
- Diane Ramic – dinosaur coloring books
- WKU League of Sculptors – molten aluminum pour into D.I.Y. molds
- Hardin Planetarium – 50th Anniversary of Apollo 11
- Hilltopper Astronomy Club – Observations of the Sun
- WKU Society of Physics Students – electromagnetism
- WKU Chemistry Club
- WKU Institue of Electrical and Electronics Engineers
- Kentuckians for the Commonwealth – solar and other renewable energy sources
- WKU American Society of Civil Engineers – concrete canoes and bridge building
- WRECC – Warren Rural Electric Cooperative Corporation
- Nanotechnology – Big Properties from the Smallest Science
- Kentucky Mesonet – local weather, global climate
- WKU White Squirrel Weather
- Wild Bird and Nature Store
- Warren County Beekeepers / Big Red Bees
- WKU Resource Conservation – Reduce, Reuse, and Recycle
- Kentucky Colonels Amateur Radio Operators
- KidSight – Bowling Green Evening Lions Club
- Applied Physics Institute
- Corvette Performance Build Team