Science, Tech, Math › Science Top-25 Chemistry Features Here's chemistry's most-read topic list. Share Flipboard Email Print Most people visiting the chemistry site want to learn how to solve homework problems or do experiments. Buena Vista Images, 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. 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 February 01, 2019 What are visitors reading? ThoughtCo. has you covered with this handy list of all of the top chemistry topics readers are perusing. Included in this top-25 listing are brief explanations of what you'll find if you click the links. Using the periodic table - The periodic table of the elements contains a wide variety of information. Most tables list element symbols, atomic number, and atomic mass at a minimum. The periodic table is organized so you can see trends in element properties at a glance.Chemical and physical changes - Chemical and physical changes are related to chemical and physical properties. Chemical changes take place on the molecular level. A chemical change produces a new substance, as this article explains.Printable periodic tables - Sometimes it's nice to have a paper version of the periodic table of the elements that you can refer to when working problems or doing experiments in the lab. This is a collection of periodic tables that you can print and use. Additional specialty tables are also available.Chemistry glossary - Find the definitions to terms in this ever-expanding glossary. The comprehensive glossary offers definitions for terms which are commonly used in chemistry and chemical engineering.Printable chemistry worksheets - Print worksheets to practice chemistry problems. The collection of chemistry worksheets is available in PDF format.Facts about acids and bases - Learn the essential about acids, bases and pH. The link provides the top 10 facts ranging from definitions to the common test of whether an unknown is an acid or a base.Baking soda vs. baking powder - Baking powder contains baking soda, but the two substances are used under different conditions. Learn about the difference between the two and how to make substitutions while baking.Can you drink too much water? - In a word, yes. Learn whether it's possible to drink too much water, how much it takes, and what happens.Chemistry problems - Learn how to work problems by using examples. This collection contains worked general chemistry and introductory chemistry problems, listed in alphabetical orderCrystal meth - The chemical n-methyl-1-phenyl-propan-2-amine is called methamphetamine, methylamphetamine or desoxyephedrine. The shortened name is simply '"meth." Learn about the chemistry of this well-known illegal drug.How to write a lab report - Lab reports are an essential part of all laboratory courses and usually a significant part of your grade. Here are step-by-step instructions on how to prepare a lab report for chemistry.List of elements - This is a list of all the known chemical elements. The names and element symbols are provided in this comprehensive list.How to calculate concentration - Calculating the concentration of a chemical solution is a basic skill all students of chemistry must develop early in their studies. Learn how to determine the concentration of a chemical solution.Heterogeneous vs. homogeneous - Heterogeneous and homogeneous refer to mixtures of materials in chemistry. Find out the difference between heterogeneous and homogeneous mixtures and get examples.How to balance equations - A chemical equation describes what happens in a chemical reaction. Learn how to set up a balanced equation.Acid-base indicators - An acid-base indicator is a weak acid or a weak base. Information in this article includes common indicators, with a table showing pH ranges, quantities and colors.How to calculate theoretical yield - Before performing chemical reactions, it is helpful to know how much product will be produced with given quantities of reactants. Learn how to calculate the theoretical yield of a chemical reaction.What is borax? - Borax is a natural mineral with a chemical formula Na2B4O7 • 10H2O. Find out what borax is and how it cleans and kills bugs. Learn whether it's safe to use.Independent vs. dependent variables - The two main variables in an experiment are the independent and dependent variable. Learn to understand the difference between independent and dependent variables in a scientific experiment.Firework colors - Creating firework colors is a complex endeavor, requiring considerable art and application of physical science. Learn how the colors are formed with a table of common colorants.Periodic table quiz - Use information about the elements found using a periodic table to answer the questions to this multiple-choice quiz.Natural mosquito repellents - You can avoid being bitten by making sure you aren't attracting mosquitoes by using a repellent and avoiding actions that diminish the effectiveness of the repellent. Find natural alternatives to help repel mosquitoes and other insects.Chemistry quizzes - Look here for all of the quizzes and self-tests and for links to quizzes at other sites. This collection of chemistry test questions is grouped according to subject. Home experiments - Whether you are homeschooling or simply looking for chemistry activities that you can do with everyday materials, this link will help. The link includes everything from holiday-themed experiments to steps for building a volcano.Science fair experiments - Get instructions for setting up your own project. This list of science fair project ideas is grouped according to topic and educational level. Learn how to make a poster and give a presentation judges will love.