Tyraine Ragsdale, also known as Master Scientist Grand Hank, is president and CEO of Grand Hank Productions, Inc. The former research chemist for Johnson & Johnson combines his passion for science, hip hop music, and multimedia production to to motivate and inspire under-served and under-represented students in STEM.

He recently presented at SciFest, a virtual expo program of the USA Science & Engineering Festival. Check out Grand Hank’s presentation on dry ice, which includes a series of experiments: