Bancroft Middle School Family Science Night (San Leandro) – 21 March 2019
Cal ACS volunteers presented a half-dozen hands-on chemistry activities to students and their families, who took home CCEW 2019 souvenirs and IYPT 2019 Periodic Table Cards. We explored the chemistry of paper with tests for strength, grain direction, and the presence of lignin. Jillian of the Mobile Mill brought hands-on papermaking to the classroom — visitors learned the process and took home hand-made paper samples.
Science teacher Clinton Huey serves ice cream 
Newsprint with phloroglucinol stain showing high lignin content 
Handmade paper magnified to show lignin fibers stained with phloroglucinol