Science, Tech, Math › Science How To Grow Instant Sheet Crystals Easy Epsom Salt Crystals in Seconds Share Flipboard Email Print Images Etc Ltd / Getty Images Science Chemistry Projects & Experiments Basics Chemical Laws Molecules Periodic Table 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. 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 March 07, 2017 You can grow crystals in seconds. It doesn't take special solutions or complicated equipment. You have all the ingredients in your kitchen. Let's do it! Difficulty: Easy Time Required: Crystals form in seconds What You Need Cookie sheet or glass panHot waterCrystal chemical (e.g., alum or Epsom salt)Food coloring (optional) Instructions Make a crystal growing solution. You can use any recipe. Great choices would be Epsom salt (magnesium sulfate, sold with laundry or bath products) or alum (from the spice section of the grocery store) stirred into very hot water until no more will dissolve. Add a little food coloring.Pour a little solution onto a cookie sheet or glass pan. It's okay if the liquid is still hot.Tilt the pan around to spread out the solution. You'll see a fan of crystals form as the liquid evaporates, similar to frost on a windowpane. Tips You don't need very much solution at all! If you have a puddle of liquid in your pan, that is too much. Pour some off and let the bottom dry. The evaporation goes more quickly if the pan is warm, but it's not really necessary to heat it (in other words, avoid burns).Try viewing the crystals through a microscope. Polarized light displays gorgeous colors!Another option is to crystallize the solution onto a sheet or plate of clear glass or plastic. Once the crystals have dried, hold the plate up to the light. Examine the crystals using a magnifying glass. What do you see if you wear polarized sunglasses?