Denner Galindo, left, and Antonio Ryes, right, with the second place ribbons for the performance of their bridge at MESA day held at PLU on Tuesday, March 25, 2014.
Nancy Beltran, Keithley Middle School, lights a fluorescent bulb with a plasma ball at the MESA day held at PLU on Tuesday, March 25, 2014.
Plasma ball on display at the MESA day held at PLU on Tuesday, March 25, 2014.
Robotic arm at MESA day held at PLU on Tuesday, March 25, 2014.
Betsy Constantine high-fives with Denner Galindo, left, and Antonio Ryes, right, after the stress test on their bridge at MESA day held at PLU on Tuesday, March 25, 2014.
Setting up a bridge for a stress test at the MESA day held at PLU on Tuesday, March 25, 2014.
MESA day held at PLU on Tuesday, March 25, 2014.
MESA day held at PLU on Tuesday, March 25, 2014.
Tre Green, Lenisha Bryant-Hamilton and Amara Gordon react to the slow progress of their car at the MESA day held at PLU on Tuesday, March 25, 2014.
Tre Green, left, Amara Gordon, center, and Lenisha Bryant-Hamilton set up their wind driven car at the MESA day held at PLU on Tuesday, March 25, 2014.