Solano Stroll 2023

Cal ACS returned to the Solano Stroll for another full day of chemistry fun in the sun, complete with UV-color-changing beads that became souvenir bracelets for hundreds of young scientists. Michael Cheng took charge this year and was there early to set up our booth, which also included solar-powered electrolysis of water and the pH rainbow demonstration. Visitors found that blowing through a straw into red cabbage pH indicator changes the color from purple to pink, proving that the carbon dioxide in our breath is acidic. Many thanks to Michael and the other volunteers who made it possible: Dan Calef, Charlie Gluchowski, Vanessa Marx, Mariana Alves, and the UC Berkeley team from Alpha Chi Sigma, led by Deverin and Madison.