Sam Ender pouring hydrochloric acid into a beaker of water in preparation for his demo lab in chemistry on May 17, 2017.
ATHENS ORACLE • May 17, 2017 • https://athensoracle.com/3539/news/ap-chemistry-spent-their-last-few-weeks-working-on-creative-demo-labs/
AP Chemistry spent their last few weeks working on creative demo labs