Science, Tech, Math › Science Lab Safety Sign Quiz (Hazard Symbols) Can You Identify Important Lab Safety Symbols? Share Flipboard Email Take a quiz to see if you can recognize lab safety signs and symbols. Lebazele / Getty Images Science Chemistry Basics Chemical Laws Molecules Periodic Table Projects & Experiments Scientific Method Biochemistry Physical Chemistry Medical Chemistry Chemistry In Everyday Life Famous Chemists Activities for Kids Abbreviations & Acronyms Biology Physics Geology Astronomy Weather & Climate By Anne Marie Helmenstine, Ph.D. Anne Marie Helmenstine, Ph.D. Facebook Twitter Chemistry Expert Ph.D., Biomedical Sciences, University of Tennessee at Knoxville B.A., Physics and Mathematics, Hastings College Dr. Helmenstine holds a Ph.D. in biomedical sciences and is a science writer, educator, and consultant. She has taught science courses at the high school, college, and graduate levels. Learn about our Editorial Process Updated on July 03, 2019 1. The skull and crossbones is a classic warning sign, but can you name the type of danger? Skull and Crossbones Lab Safety Sign. Martin Diebel / Getty Images general danger from chemicals flammable materials toxic or poisonous materials dangerous to eat/drink, but otherwise safe this symbol isn't officially used (pirate ships don't count) 2. You may not ever see this warning symbol, but if you do it would be in your best interest to know what it means. ionizing radiation get out while you still can, it's radioactive here dangerous high-powered ventilation toxic vapors potentially lethal levels of radiation 3. This symbol commonly is found in chemistry labs and on trucks carrying hazardous materials. What does it mean? Warning Sign. Martin Diebel / Getty Images acid, touching it will lead to what you see in the picture harmful to living tissue dangerous liquid cut or burn hazard corrosive, no touchy-touchy 4. Hint: don't store your lunch in a refrigerator which displays this sign. It signifies: Danger. Josef F. Stuefer / Getty Images biohazard radiation hazard radiaoctive biological hazard nothing necessarily dangeous, just the presence of biological samples 5. It looks like a pretty snowflake, but that yellow background is cautionary. What hazard does this symbol indicate? dangerous when frozen icy conditions low temperature or cryogenic hazard snow possible in this lab cold storage required (freezing point of water or below) 6. It's just a big X. What does that mean in a lab? treasure buried here don't store chemicals here potentially harmful chemical, usually an irritant do not enter general warning sign used to indicate a no-no or 'I know what you're thinking, don't do it.' 7. There might be a few reasonable interpretations for this sign, but only one is correct. What does this symbol indicate? breakfast bar, serving bacon and pancakes noxious vapors hot surface high vapor pressure 8. This symbol is often confused with a similar-looking symbol. What does it mean? flammable, keep away from heat or flame oxidizer heat-sensitive explosive there is an open flame here don't expose to sunlight fire goes here 9. This symbol means: you shouldn't drink the water you shouldn't use the faucet you shouldn't bring in drinks don't clean your glassware here this is not the bar 10. Unless you have been living in a hole for the past 50 years, you've seen this symbol. What does it mean? Caspar Benson / Getty Images unguarded fan blades radioactivity biohazard toxic chemicals it isn't a real sign Lab Safety Sign Quiz (Hazard Symbols) You got: % Correct. Voted Most Likely To Die in a Lab Accident If you don't learn the lab safety symbols, you won't last long in a chemistry laboratory.. Vitaly Schuko / EyeEm / Getty Images Let's hope you have common sense, since you don't know what the safety symbols mean. You learned a few taking the quiz, right? Here's a gallery of safety symbols and their meanings, so you can brush up on the topic before heading into a lab. Ready for another quiz? See if you can tell real elements from fake ones. Share Your Results Share Flipboard Email Lab Safety Sign Quiz (Hazard Symbols) You got: % Correct. Better Safe Than Sorry Make sure you know lab safety signs before you face dangerous or toxic chemicals.. Thomas Roepke / Getty Images You knew some of the signs, but not all of them. Better brush up on those before someone let's you loose in a lab! Here's a collection of safety symbols and their meanings that you can use for review. Ready for another quiz? See if you can identify types of laboratory glassware. Share Your Results Share Flipboard Email Lab Safety Sign Quiz (Hazard Symbols) You got: % Correct. Safe as Safe Can Be You aced the safety sign quiz so you could work in a clean room.. Ted Horowitz / Getty Images Congratulations! You did great on this quiz. If you think you're up for the challenge, try making your own chemicals. Ready for another quiz? See how much science trivia you know. Share Your Results Share Flipboard Email