Anne Marie Helmenstine, Ph.D. Follow Chemistry Expert Education Ph.D., Biomedical Sciences, University of Tennessee at Knoxville B.A., Physics and Mathematics, Hastings College Introduction Ph.D. in biomedical sciences from the University of Tennessee at Knoxville - Oak Ridge National Laboratory.Science educator with experience teaching chemistry, biology, astronomy, and physics at the high school, college, and graduate levels.ThoughtCo and About Education chemistry expert since 2001.Widely-published graphic artist, responsible for printable periodic tables and other illustrations used in science. Experience Anne Helmenstine, Ph.D. has covered chemistry for ThoughtCo and About Education since 2001, and other sciences since 2013. She taught chemistry, biology, astronomy, and physics at the high school, college, and graduate levels. She has worked as a research scientist and also abstracting and indexing diverse scientific literature for the Department of Energy.In addition to her work as a science writer, Dr. Helmenstine currently serves as a scientific consultant, specializing in problems requiring an interdisciplinary approach. Previously, she worked as a research scientist and college professor. Education Dr. Helmenstine holds a Ph.D. in biomedical sciences from the University of Tennessee at Knoxville and a B.A. in physics and mathematics with a minor in chemistry from Hastings College. In her doctoral work, Dr. Helmenstine developed ultra-sensitive chemical detection and medical diagnostic tests. ThoughtCo and Dotdash Meredith ThoughtCo, a Dotdash Meredith brand, is an award-winning reference site offering education content created by experts. ThoughtCo reaches 13 million readers each month. Learn more about us and our editorial guidelines. Read more from Anne Marie Helmenstine, Ph.D. Molarity Definition in Chemistry What Is Alum and How Is It Used? The Relationship Between Electricity and Magnetism 7 Extinction Level Events That Could End Life as We Know It What Is an Experimental Constant? Canned Air Isn't Air (Chemical Composition) Henderson-Hasselbalch Equation and Example Stoichiometry Definition in Chemistry Boiling Points of Ethanol, Methanol, and Isopropyl Alcohol What Happens to Candle Wax When a Candle Burns Learn How to Identify Plasma With These Examples The Molecular Formula for Water Absolute Temperature Definition Double Replacement Reaction Definition Conjugate Base Definition (Chemistry) Actual Yield Definition (Chemistry) How to Convert Feet to Inches What is the Difference Between Molarity and Molality? Does the Mentos and Soda Trick Work With Regular Coke? The Combined Gas Law in Chemistry Calculating the Concentration of a Chemical Solution The Balanced Chemical Equation for Photosynthesis Acidic Solution Definition Lemon Fizz Science Project