From LegoLand to General Atomics, over 100 San Diego companies and organizations sponsor booths at the science fair engaging over 65000 citizens in all things science. Lots of interactive, hands-on science experiments will educate and astound. What can a volcano teach you? Nuclear fusion! How about a self-driving car? Robotics! What about slime? Chemistry!
And, shameless plug, after you leave the fair, contact Allison at A+ to learn about all the cool colleges where you can prepare for a career in Science-Technology-Engineering-Math.