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Chemistry: Most Popular Articles

These articles are the most popular over the last month.
Over 20 Fun Kitchen Science Experiments for Kids
Do you want to explore science, but can't find or can't afford chemicals? You can explore the fun of science in your own kitchen. Here are some science experiments and projects you can do that use common kitchen chemicals.
How To Substitute Baking Powder and Baking Soda
Baking powder and baking soda are leavening agents that help baked goods to rise. Here is exactly how to substitute baking powder and baking soda.
Know the Difference Between Baking Powder &...
Baking powder and baking soda both make baked goods rise. Learn the difference between baking powder and baking soda and how to make ingredient substitutions.
Why Does a Big Turkey Dinner Make You So Sleepy?
Find out why everyone wants to take a nap after the big Thanksgiving Day feast. Let's talk turkey and learn about L-tryptophan and carbohydrate metabolism.
Why You Shouldn't Mix Bleach and Ammonia
Mixing bleach and ammonia is extremely dangerous, since toxic vapors will be produced. Here are the chemical reactions involved and first aid advice.
10 Examples of Chemical Reactions in Everyday...
Chemistry happens in the real world, not just a lab. Here are 10 examples of chemical reactions in everyday life.
10 Examples of Chemical Changes That We...
Chemical changes occur when chemical reactions between substances form new products. Get examples of 10 chemical changes in everyday life.
How to Make a Storm Glass To Predict the Weather
Use your knowledge of chemistry to make a storm glass to help you predict the weather.
10 Examples of Physical Changes
Physical changes involve a new form or shape of matter, but no chemical reaction. This is a list of 10 examples of physical changes.
Know the Differences Between DNA and RNA
DNA and RNA both carry genetic information, but there are differences between them. This is a comparison of the differences between DNA versus RNA.
How to Calculate the Concentration of a...
Calculating concentration is a basic skill needed by chemistry students. This is a list of steps and examples to calculate the concentration of chemical solutions in percent composition by mass, volume percent, molarity, molality, and normality.
What Is the Freezing Point of Water?
What is the freezing point of water or the melting point of water? Are the freezing and melting point the same? Here's the answer to these common questions.
Is Red Bull Made from Bull Semen?
Find out whether the taurine in Red Bull came from bull semen.
Easy Way To Grow Borax Crystal Snowflakes
It's easy to grow your own sparkling clear or colored borax crystal snowflakes. Here's what you do.
What Temperature Does Water Boil?
At what temperature does water boil? What determines the boiling point of water? Here's the answer to this common question.
10 Types of Solids, Liquids, and Gases
Get examples of types of solids, liquids, and gases and learn about the transitions or phase changes between them.
What Is Borax and Where Can You Get It?
Borax is a common household and commercial chemical. Here's a look at what borax is, some facts about borax and how you can get borax.
Is It Okay To Drink Distilled Water?
Distillation is one method of water purification. Is distilled water safe to drink or as good for you as other types of water? The answer depends on a few different factors.
What Are the Types of Chemical Reactions?
When you mix chemicals, you may get a chemical reaction. Learn about the different types of chemical reactions and get examples of the reaction types.
Heterogeneous and Homogeneous Mixtures: What's...
Heterogeneous and homogeneous refer to mixtures of materials in chemistry. Learn about the difference between these mixtures and get examples of each type.
What's the Difference Between Chemical and...
Here are some examples of physical changes and chemical changes, along with an explanation of how you can tell physical and chemical changes apart.
What Is STP in Chemistry?
Here's an explanation of what STP is in chemistry and why it is useful, particularly when dealing with gases.
What Is the Difference Between Organic and...
Organic compounds and inorganic compounds form the basis for chemistry. Here is a look at the difference between organic and inorganic compounds, plus examples of each type.
20 Chemistry Questions Quiz - 20 Chemistry...
Take a multiple choice quiz to test yourself about general knowledge in chemistry.
10 Facts About Acids and Bases
Here are 10 facts about acids and bases to help you learn about acids, bases, and pH and complete your homework.
3 Ways To Calculate Atomic Mass
The atomic mass or atomic weight of an element is a weighted average of all the element's isotopes based on their natural abundance. It is simple to calculate the atomic mass of an element with these steps.
How To Build a Classic Baking Soda Volcano
The chemical volcano is the classic science fair project. This step-by-step recipe will show you how to make your own baking soda volcano.
Science Quiz - Test Your General Science...
Test your general science knowledge with this fun multiple choice quiz.
Why You Shouldn't Mix Bleach and Vinegar
Mixing bleach and vinegar is a bad idea because it produces toxic chlorine gas. Here's what you should know about mixing bleach and vinegar, before you try it.
What Is Red Mercury?
Learn about red mercury, mercury antimony oxide, and its purported use in explosives and fusion devices.
Quick Chemistry Facts About the Ideal Gas...
The gas constant or R is an important constant in the ideal gas law. This is the definition and value of the gas constant.
Things That Glow in Black or Ultraviolet Light
This is a list of materials that glow under ultraviolet or black light because they contain fluorescent or phosphorescent molecules.
Equation for the Baking Soda and Vinegar Reaction
The reaction between baking soda and vinegar generates carbon dioxide gas, used in chemical volcanoes. Here is the equation for the reaction between baking soda and vinegar.
Independent Variable Definition and Examples
This is the definition of an independent variable, with examples. An independent variable is one of the key factors in a scientific experiment.
Which Element Are You? - Element Personality Quiz
Which chemical element are you? Technically speaking, you mostly consist of carbon, hydrogen, and oxygen, but which element best represents your personality? Take this fun multiple choice quiz to find out.
Understand the Difference Between Independent...
The difference between independent and dependent variables in a scientific experiment is which variable is being measured. Here's an explanation of how to tell these critical variables apart.
How Much of The Human Body Is Water?
Have you ever wondered how much of your body is water? The percentage of water varies according to your age and gender. Here's a look at how much water is inside you.
Elements by the Numbers From Hydrogen to...
Here's a list of all of the chemical elements of the periodic table ordered by increasing atomic number. The names and element symbols are provided.
Common Examples of Covalent Compounds
These are examples of covalent bonds and covalent compounds and an explanation of the type of atoms expected to form this type of chemical bond.
Tryptophan Facts
Tryptophan is an amino acid that is found in many foods, such as turkey. Here are some facts about what tryptophan is and the effects it has on your body.
This Is How To Calculate Percent Error
Percent error or percentage error is the difference between an approximate or measured value and an exact or known value. Here is how to calculate percent error.
Can You Name the 7 Diatomic Elements?
There are seven elements that form homonuclear diatomic molecules or simple molecules with their own atoms. This is a list of the 7 diatomic elements.
What Does pH Stand For?
Have you ever wondered what pH stands for or where the term originated? Here is the answer to the question and a look at the history of the pH scale.
What Is Alum?
Find out what alum is and the uses of alum.
Anode vs. Cathode: What's the Difference?
Here is how to define anode and cathode and how to tell them apart. There's even a mnemonic to help keep them straight.
Get Printable Worksheets To Practice Balancing...
This is a collection of printable worksheets to practice balancing equations. The printable worksheets are provided in pdf format with separate answer keys.
An Easy Way to Calculate Molarity of a Solution
Molarity is a unit of concentration measuring the number of moles of a solute per liter of solution. Here is how to calculate molarity of a solution.
How to Make a Bouncing Polymer Ball
Use chemistry to make a bouncing polymer ball, then alter the procedure to see the effect the changes have on the characteristics of the bouncing ball.
How to Name Molecular or Covalent Compounds
Molecular compounds or covalent compounds are those in which the elements share electrons via covalent bonds. The only type of molecular compound a chemistry student is expected to be able to name is a binary covalent compound. Here is a look at the nomenclature rules for molecular compounds, plus some examples of how to name the compounds.
12 Easy Chemistry Projects You Can Do at Home
Want to do a chemistry project but don't have your own laboratory? Here is a collection of experiments using common materials you have at home.
Examples of Compounds with Ionic Bonds
Ionic compounds form when elements share electrons. Here are examples of ionic bonds and ionic compounds.
How Does the Fermentation Process Actually Work?
Fermentation is a process used to produce wine, beer, yogurt and other products. Here's a look at the chemical process that occurs during fermentation.
Learn the Properties and Characteristic of...
These are properties of covalent compounds, also known as molecular compounds.
Interactive Periodic Table of the Elements
This is an interactive periodic table of the elements. Click on an element symbol to get detailed facts for each element.
20 Science Questions Quiz - 20 Science Facts...
Take a multiple choice quiz to test yourself about general knowledge in science.
What Are the Properties and Characteristics of...
Here are the properties shared by the ionic compounds.
Basics of Acids and Bases Quiz - Test Your...
Basics of Acids and Bases Quiz - Test Your Chemistry Knowledge
How to Write a Lab Report
Lab reports are an essential part of all laboratory courses and a significant part of your grade. Here's a format for a lab report you can use if you aren't sure what to write or need an explanation of what to include in the different parts of the report.
Is It Safe To Drink Bleach? Will It Kill You?
Learn whether or not it is safe to drink bleach, what happens if you do, and whether it can kill you. Also answering the rumor if drinking bleach can help you pass a drug test
How to Make Homemade Rock Candy or Sugar Crystals
These are step by step instructions for growing your own sugar crystals or rock candy.
Teach Yourself Chemistry
You can teach yourself general chemistry with this step-by-step introduction to the basic concepts.
10 Examples of Everyday Chemistry in the World...
Chemistry is a big part of your everyday life. You find chemistry in daily life in foods you eat, air you breathe, soap, your emotions and literally every object you can see or touch. Here's a look at some examples of everyday chemistry.
Know What Happens If You Mix Regular and...
Have you ever wondered what would happen if you mixed regular and synthetic motor oils? Here's the answer to the question and a look at whether you should ever mix oils or whether it could damage your vehicle's engine.
What's the Difference Between Ionic and...
Ionic and covalent bonds hold molecules together. Learn to distinguish between ionic and covalent bonds, and determine whether a bond will be polar or nonpolar.
Balancing Equations Practice Quiz
Practice balancing chemical equations with this multiple choice quiz.
Make Your Own pH Indicator with Red Cabbage
Make your own pH indicator solution! Red cabbage juice contains a natural pH indicator that changes colors according to the acidity of the solution. Red cabbage juice indicator is easy to make, exhibits a wide range of colors, and can be used to make your own pH paper strips.
Everything You Need to Know About Crystal Meth
Need crystal meth facts? Learn what crystal meth is, why people takeit, how it's made, and what risks are associated with using methamphetamine.
How to Calculate Theoretical Yield
Here's how to calculate theoretical yield or how much product will be produced with given quantities of reactants.
Learn About the Branches of Chemistry
There are several branches of chemistry. Here is a list of the main branches of chemistry, with an overview of what each branch of chemistry studies.
How To Make Non-toxic, Realistic Fake Snow
You can make fake snow using a common polymer. The fake snow is non-toxic, feels cool to the touch, and looks similar to the real thing.
Know the 3 Types of RNA and Their Functions
One common homework and test question asks you to name the three types of RNA and list their functions. Here's the answer.
Metals vs. Nonmetals: What's the Difference?
Elements may be classified as either metals or nonmetals, based on their properties. Here's a look at the differences between the metals and nonmetals.
Understand the Difference Between a Cation and...
Cations and anions are both ions. The difference between a cation and an anion is the net electrical charge of the ion. Here is how to tell them apart.
What Is the Importance of Chemistry?
What is the importance of chemistry? Why would you want to learn about chemistry? Chemistry is the study of matter and its interactions with other matter and energy. Here's a look at the importance of chemistry and why you should study it.
10 Examples of Mixtures
This is a list of 10 examples of mixtures and an explanation of whether the mixture is heterogeneous or homogeneous.
A List of the Strong Acids
These are the strong acids. There are only six strong acids, so you might want to commit the list of strong acids to memory.
Fun and Interesting Chemistry Facts
Chemistry is a fascinating science, full of unusual trivia! Here are some fun and interesting chemistry facts for you.
How to Remove Ball Point Pen Ink
Ball point pen ink is not removed with soap and water, but there is an easy and inexpensive way to remove pen ink from surfaces or clothing. Here is what you do.
Big Collection of Printable PDF Periodic Tables
Download or print these PNG and PDF printable periodic tables to help work chemistry problems or to predict properties of the elements.
What You Should Know About Reboiled Water
Have you ever wondered what happens to water chemistry when you reboil water? Is it still safe to drink? Here's the answer to the question.
Easily Restore Tarnished Silver with this...
These are instructions for making your own chemical dip to polish silver. No scrubbing required!
What is the Bohr Model of the Atom?
The Bohr Model has an atom consisting of a small, positively-charged nucleus orbited by negatively-charged electrons. Here's a closer look at the Bohr Model, which is sometimes called the Rutherford-Bohr Model.
What Are the First 20 Elements?
Here are the first 20 elements and their symbols.
Handy List of All the Element Symbols
The elements are the basis for all matter. Learn the one and two letter symbols for the chemical elements of the periodic table using this handy list.
Explanation of the Octet Rule
The octet rule states that elements gain or lose electrons to attain an electron configuration of the nearest noble gas. Here is an explanation of how that works and why elements follow the octet rule.
Your Guide on How to Make Smoke Bombs
Learn how to make a smoke bomb. This is the list of materials required for making your own smoke bomb.
What Really Happens If You Put Sugar in a Gas...
Learn what really happens if you put sugar in a car's gas tank.
Understand the Difference Between Mass and Weight
Here is a simple explanation of the difference between mass and weight, with examples and a chart comparing the two concepts.
4 Types of Inorganic Chemical Reactions
Classify inorganic chemical reactions into one of these general categories.
3 Steps to Writing Balanced Chemical Equations
Balancing chemical equations is a key chemistry skill. Use these step by step instructions to write and balance chemical equations.
What Are the Strong Bases?
Strong bases are bases which completely dissociate in water. Here is a list of the most common strong bases.
10 Interesting Periodic Table Facts
The periodic table organizes the elements according to their periodic properties. Find 10 periodic table facts that are interesting and informative.
What Is the Most Conductive Element?
Here is a look at the three most electrically conductive elements. As you might expect, all three conductive elements are metals.
How To Make Sulfuric Acid at Home
Sulfuric acid is a useful acid to have on hand for a variety of home chemistry projects. However, it is not easy to obtain. Fortunately, you can make it yourself.
How to Calculate Normality of a Solution
The normality of a solution is the gram equivalent weight of a solute per liter of solution. Here's an example of how to calculate the normality of a solution.
Chemistry 101: What Chemistry Is and Why You...
Start learning chemistry with the basics. Learn what chemistry is, what chemists do, and why it's important to study chemistry.
Atom Basics Quiz - Test Your Chemistry Knowledge
Atom Basics Quiz - Test Your Chemistry Knowledge
Try These 8th Grade Science Project Ideas
Get ideas for 8th grade science fair projects. These are experiments and topics suitable for upper middle school level science fair projects.
Quick Facts About Muriatic Acid
Here is a look a what muriatic acid is, where you can find it, and the uses of muriatic acid.
Why Salt Melts Ice
You know that you can sprinkle salt on an icy road or sidewalk to help keep it from becoming icy, but do you know how salt melts ice? Take a look at freezing point depression to understand how it works.
Learn About Lewis Structures or Electron Dot...
Learn about Lewis structures, also called electron dot structures and get step-by-step help drawing them.
Periodic Table of Elements: Explaining Peridocity
Learn about the periodic properties or trends in the periodic table of the elements.
The Reason Turkey Has White and Dark Meat
You can get white meat or dark meat turkey and chicken, but do you know what causes the meat to be different? Here's a look at how white meat and dark meat works.
Chemical Reaction Classification Quiz - Test...
There are many different types of chemical reactions. There are single and double displacement reactions, combustion, decomposition reactions and synthesis reactions. See if you can identify the type of reaction in this ten question chemical reaction classification quiz.
Why Onions Make You Cry
Find out why you cry when you cut onions and how you can keep it from happening.
Top 10 Chemistry Demonstrations and Experiments
This is the list of my top 10 favorite chemistry demonstrations, experiments, and activities.
Know the 5 Branches of Chemistry
Here is a list of the 5 main branches of chemistry, along with an explanation of what each of the branches studies.
Calculate Root Mean Square Velocity of Gas...
This example problem demonstrates how to calculate the root mean square velocity of particles in an ideal gas.
Ionic Compounds Nomenclature Quiz - Can You...
This multiple choice quiz covers ionic compound nomenclature. Test your ability to name ionic compounds and to write the formula of ionic compounds from their names.
10 Useful Gold Facts
Get 10 interesting facts about the element and metal gold.
Interesting High School Science Project Ideas
Get ideas for great high school science projects. These are projects targeted from the 9-12 grade educational level.
Understand Coffee Cup Calorimetry and Bomb...
A calorimeter is a device used to measure the quantity of heat flow in a chemical reaction. Two of the most common types of calorimeters are the coffee cup calorimeter and the bomb calorimeter.
What Is an Isotope?
Isotopes are one form an element can take. This is the definition of an isotope, with examples.
Why Do Cheap Rings Turn Your Fingers Green?
Have you ever had a ring turn your finger green? The reason this happens is because of the metal content of the ring. Here's a look at what's happening.
Element Groups - Periodic Table of the Element...
Groups of Elements - This is an interactive periodic table of the elements.
Periodic Table Trends - Periodic Table Quiz
Do you understand the trends of periodic table periodicity? Here's a ten question multiple choice quiz you can take to test your periodic table knowledge.
Make a Color Wheel of 'Magic' Milk Using Science
If you add food coloring to milk, not a whole lot happens, but it only takes one simple ingredient to turn the milk into a spinning color wheel. Here is what you do.
List of All the Elements That Are Metals
Most elements are metals. This group includes the alkali metals, alkaline earth metals, transition metals, basic metals, and rare earth elements.
Are Apple Seeds Poisonous?
Apple seeds do contain a small amount of cyanide, which is a lethal poison, but humans are protected from it in several ways. Learn how poisonous apple seeds really are.
Practice Chemistry with Worked Chemistry Problems
This is an alphabetical list of worked example chemistry problems. Printable worksheets with questions and answers are also provided.
Element Picture Quiz - Test Your Recognition of...
Can you recognize the elements when you see them? Here's a quiz that tests your ability to identify an element based on its appearance.
How to Calculate Mass Percent in Chemistry
Mass percent composition of a molecule shows the amount each element in a molecule contributes to the total molecular mass. This step by step tutorial will show the method to determine the mass percent composition of a molecule.
What Are Chemical and Physical Changes?
Chemical and physical changes relate to matter properties. Find out what chemical and physical changes are, get examples, and learn how to tell them apart.
How to Make Homemade Slime (Classic Recipe)
This is a classic recipe for homemade slime. It's super-easy, plus I included tips for success.
Understand the Difference Between Accuracy and...
This is an explanation of the difference between accuracy and precision. Examples of accuracy and precision are also provided.
What Is the Mole Unit of Measurement?
If you take chemistry, you need to know about moles. Find out what a mole is and why this unit is used in chemistry.
Topics Covered in 11th Grade Chemistry
High school chemistry most commonly is offered during the 11th grade as Chemistry 11. This is a list of Chemistry 11 or 11th Grade high school chemistry topics.
Easy Ways To Remove Fluoride from Tap Water
Learn how to remove fluoride from drinking water and how to reduce your exposure other ways.
Chem Students Should Know These Acid and Base...
Here are the names and formulas of some of the common acids and bases.
How To Make a Model of an Atom
Atoms are the smallest units of each element and the building blocks of matter. Here's how to make a model of an atom using common materials.
Chemical Bonds & Compounds Chemistry Quiz
Chemical Bonds & Compounds Chemistry Quiz: electron dot structures ionic covalent bonds lewis electron dot structures chemistry quiz chemistry quizzes
Element Symbol Quiz - Element Symbols for the...
Take a multiple choice quiz to test yourself about the symbols for the first 20 elements.
pH of Common Chemicals
pH is a measure of the acidity of a substance. Here's a table of the pH of several common chemicals.
What Is Distillation?
Explanation of the process of distillation, a common method used in chemistry to separate substances.
Home Chemicals To De-Ice Your Windshield
You can use household chemicals to de-ice your windshield. Here are tips and tricks for removing ice ice from your car's windshield or preventing it from forming in the first place.
10 Facts About Iron
Iron is an important chemical element for life and many products. Here are 10 facts about the element iron.
Learn About Combustion Reactions
This is an overview of combustion reactions, including what they are, the general format for the reaction, and examples of combustion reactions.
Learn What Chemical Properties Are and Get...
Here is an explanation of what chemical properties are, plus several examples of chemical properties of matter.
Why Study Chemistry?
There are lots of reasons why you should study chemistry, even if you aren't interested in science or want a job in chemistry. Here are reasons to study chemistry.
How to Grow Great Crystals
Learn how to grow crystals yourself using common ingredients you have at home. Avoid common problems and get tips and tricks for successful crystal growth.
Know the Major Laws of Chemistry
Here's a reference pages that describes the major laws of chemistry.
Make Hot Ice from Vinegar and Baking Soda
Sodium acetate, also known as 'hot ice' is an amazing chemical you can easily prepare yourself using baking soda and vinegar. The crystallization is an exothermic process, so the resulting ice is hot.
9th Grade Science Test
Test your general science knowledge of 9th grade science with this fun online multiple choice quiz.
Fun Middle School Science Projects
Find ideas for middle school science fair projects. These are projects suitable for the 6-8 grade level.
Find a Funny Chemistry Joke
Read funny chemistry jokes, puns, and riddles and find other chemistry humor.
Working on a Science Project? Start With the...
Science fair and research projects apply the scientific method. Here's an explanation of the scientific method and how the scientific method is used.
What Are Examples of a Hypothesis?
Here are examples of a scientific hypothesis and how to improve a hypothesis to use it for an experiment.
What Is the Difference Between Atomic Mass and...
There is a difference between the meanings of atomic mass and mass number. One is the average weight of an element and the other is the total number of nucleons in the atom's nucleus. Here's how to keep them straight.
What You Need to Know to Calculate pH
Review how to calculate pH and what pH means with respect to hydrogen ion concentration, acids, and bases.
Use Iodine Titration to Determine the Amount of...
Use this redox-based iodometric titration to determine the amount of Vitamin C or ascorbic acid in juice and other samples.
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