Science, Tech, Math › Science Fun Science Facts Fun and Interesting Science Facts to Amaze You Share Flipboard Email Print Closeup of jaw of Bull Shark, Carcharhinus leucas, showing development of rows of teeth. Jonathan Bird/Photolibrary/Getty Images Science Chemistry Chemistry In Everyday Life Basics Chemical Laws Molecules Periodic Table Projects & Experiments Scientific Method Biochemistry Physical Chemistry Medical Chemistry Famous Chemists Activities for Kids Abbreviations & Acronyms Biology Physics Geology Astronomy Weather & Climate By Anne Marie Helmenstine, Ph.D. 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. our editorial process Facebook Facebook Twitter Twitter Anne Marie Helmenstine, Ph.D. Updated April 11, 2019 Amaze yourself and your friends with these science facts! This is a collection of fun and interesting science facts. When you crack a whip, it makes a sharp sound because the tip of the whip is traveling faster than the speed of sound. It is a sort of mini sonic boom!You could theoretically lose weight eating celery since it takes more calories to digest celery than are contained in the vegetable.Shark teeth are as hard as steel.The only letter not used in the periodic table is J.Lobsters have blue blood.Sound travels about four times faster in water than in air.2 and 5 are the only prime numbers that end in 2 or 5.Women blink nearly twice as often as men.The billionth digit of pi is 9. (Source: Ben Peoples)On average, it takes a person 7 minutes to fall asleep.The peanut is a member of the bean or legume family and not a nut.The prefix 'numbus' in a cloud name means the cloud produces precipitation.Anemometers measure wind speed.The only two planets in our solar system that do not have moons are Mercury and Venus.Bronze is an alloy of copper and tin.Oxygen is the most common element in the Earth's crust.