WHAT’S THAT WHITE POWDER?

EXPERIMENT: Mystery Powders Operating Guide U7.4 UNIT 7 CRIME SCENE CHEMISTRY EXPERIENCING CHEMISTRY ©2006 OMSI Baking powder contains baking soda and starch, as well as other ingredients. The baking soda bubbles in vinegar and the starch turns iodine black-purple. Forensic scientists use similar techniques to identify ................
................