What do you tell students to do when they don't know what to do? This video is part of the Flinn Scientific Best Practices for Teaching Chemistry Video Series, a collection of over 125 hours of free professional development training for chemistry teachers - elearning.flinnsci.com ATTENTION: This demonstration is intended for and should only be performed by certified science instructors in a safe laboratory/classroom setting. Be sure to subscribe and check out more videos! Subscribe: www.youtube.com/channel/FlinnScientific/ Facebook: www.facebook.com/FlinnScientific/ Website: www.flinnsci.com/