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Chemistry: Most Popular Articles

These articles are the most popular over the last month.
Know the Difference Between Baking Powder &...
Baking powder and baking soda both are used to make baked goods rise. Learn the difference between baking powder and baking soda and how to make ingredient substitutions if you run out of one and not the other.
Science Quiz - Test Your General Science...
Test your general science knowledge with this fun multiple choice quiz.
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.
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.
Basics of Acids and Bases Quiz - Test Your...
Basics of Acids and Bases Quiz - Test Your Chemistry Knowledge
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.
Know the Differences Between DNA and RNA
Although DNA and RNA both carry genetic information, there are quite a few differences between them. This is a comparison of the differences between DNA versus RNA, including a quick summary and a detailed table of the differences.
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.
20 Chemistry Questions Quiz - 20 Chemistry...
Take a multiple choice quiz to test yourself about general knowledge in chemistry.
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 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.
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.
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.
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 in mixing bleach and ammonia and first aid advice if you accidentally become exposed to a bleach and ammonia mixture.
Atom Basics Quiz - Test Your Chemistry Knowledge
Atom Basics Quiz - Test Your Chemistry Knowledge: structure quiz chemistry knowledge model of the atom question quiz science fundamentals
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.
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.
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 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.
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.
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.
How To Blow Giant Bubbles That Won't Pop
If you're tired of bubbles that pop as soon as you blow them, try this recipe for unbreakable bubbles!
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.
Get Formulas for Surface Area and Volume of...
Here are the surface area and volume math formulas for a prism.
What Are 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.
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.
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.
How to Remove Ball Point Pen Ink
Ball point pen ink is not a something that you can usually remove with simple soap and water, but there is an easy and inexpensive way to remove pen ink from surfaces or clothing. Here is what you do.
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.
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.
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.
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.
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.
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.
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.
How To Stop a Mosquito Bite from Itching
While you can buy treatments for mosquito bites, there are a lot of home remedies that can relieve the itching and sting without the expense.
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.
pH of Household Products Quiz
pH of Household Products Quiz - See whether you know the pH of chemicals around your home.
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.
How to Grow a Big Alum Crystal - Simulated...
Alum is found in the 'spices' section of the grocery store. That little jar contains small white crystals that, with a bit of time and effort, you can grow a big alum crystal. This simple recipe will show you the best way to grow your own alum crystal.
Anode vs. Cathode: What's the Difference?
Here is how to define anode and cathode and how to tell them apart.
What Is Alum?
Find out what alum is and the uses of alum.
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.
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.
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.
What Are the Strong Bases?
Strong bases are bases which completely dissociate in water. Here is a list of the most common strong bases.
Chem Students Should Know These Acid and Base...
Here are the names and formulas of some of the common acids and bases.
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 are the details on the difference and how to tell them apart.
Try These Natural Mosquito Repellents
Learn about natural ways to repel mosquitoes and develop strategies to reduce your exposure to them.
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.
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.
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.
Will Mango Skin Give You a Poison Ivy Reaction?
Can you eat the skin of a mango? The answer depends on a few different factors. Here's a look at the good chemicals in mango, as well as one that can cause a nasty reaction.
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.
Do You Believe These 5 Common Science...
Even intelligent, educated people often get these science facts wrong. Here is a look at some of the most widely held scientific beliefs that are untrue.
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.
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.
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.
Make Your Own Natural Insect Repellent Recipe
You can make natural insect repellent yourself. The insect repellent is safe and effective, plus it costs much less to make it than to buy it.
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.
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.
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.
What Is a Synthesis Reaction in Chemistry?
A synthesis reaction or direct combination reaction is one of the most common types of chemical reactions. Here is a definition, explanation, and example of a synthesis reaction.
What Is the Difference Between Celsius and...
Learn the difference between Celsius and centrigrade temperature scales.
Common Examples of Covalent Compounds
These are examples of covalent bonds and covalent compounds.
Is Milk an Acid or a Base?
Have you ever wondered about the pH of milk and whether it is an acid or a base? Here's a look at the pH of milk.
20 Science Questions Quiz - 20 Science Facts...
Take a multiple choice quiz to test yourself about general knowledge in science.
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.
Baking Soda and Vinegar Erupting Volcano
The baking soda and vinegar volcano is the classic chemical volcano that you see at science fairs. Watch how easy it is to make a chemical volcano that produces a memorable eruption.
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.
What are the Mood Ring Colors and Meanings?
This chart shows the colors of the typical 1970s mood ring and the meanings associated with the mood ring colors.
Fun Science Project Idea: How To Make Ice Cream...
Make ice cream in a bag to get a tasty treat while learning science.
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.
How To Make a Smoke Bomb With Ping Pong Balls
It's super easy to make homemade smoke bombs using ping pong balls.
What Are the First 20 Elements?
Here are the first 20 elements and their symbols.
Convert Grams To Moles - Sample Problem
This worked example problem shows how to convert the number grams of a molecule to the number of moles of the molecule.
What Is the pH of Water?
The pH of water is a value you should know, plus it's good to understand why the actual pH of water might differ from the theoretical value.
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.
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.
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.
What Is a Pure Substance?
You may have wondered what is meant by the term 'pure substance'. Here's a look at what a pure substance is and how you can tell if a substance is pure or not.
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.
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.
Do You Know the Names of 10 Acids?
Here is a list of ten common acids with chemical structures.
Understanding Endothermic and Exothermic...
Learn about endothermic and exothermic chemical reactions and get instructions to perform your own hot and cold chemistry experiments.
Easy Steps To Make Classic Borax and Glue Slime
Get step-by-step instructions for making classic slime.
Balancing Equations Practice Quiz
Practice balancing chemical equations with this multiple choice quiz.
Learn Key Acids and Bases Definitions
Understanding acids and bases is important for grasping chemistry concepts. Here's an introduction to acids and bases, with definitions for key acid and base terms.
6th Grade Science Quiz - Test Your 6th Grade...
Test your 6th grade general science knowledge with this fun multiple choice quiz.
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.
Is Red Bull Made from Bull Semen?
Find out whether the taurine in Red Bull came from bull semen.
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.
What Is a Base in Chemistry?
Base definition, as used in chemistry, chemical engineering, and physics.
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.
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.
Is It Okay To Drink Rain Water?
Here's a look at whether or not it's safe to drink rain water, the risks, and ways to improve rain water quality to make it better to drink.
8 Ice Cream Recipes Made with Science
Making ice cream is great way to enjoy a tasty treat, plus it involves several chemistry and other science concepts. Here's a collection of easy and fun science ice cream recipes, including classic liquid nitrogen ice cream, homemade Dippin' Dots, dry ice ice cream and more.
Examples of Endothermic Reactions
This is a list of chemical reactions that are endothermic reactions. You can try these reactions to make homemade cold packs.
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.
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.
What Is the Freezing Point of Water?
What is the freezing point of water or the melting point of water? Are the freezing point and melting point the same? Are there any factors that affect the freezing point of water? Here's a look at the answers to these common questions.
What Are Farts Made Of?
Have you ever wondered what farts are made of and whether they are the same for everyone? Here's a look at the chemical composition of farts.
Can You Drink too Much Water?
Is it really possible to drink to much water? Learn about water intoxication and hyponatremia.
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.
Bleach and Alcohol Make Chloroform
Mixing bleach and alcohol is a bad idea because the chemicals react to make chloroform. Here's a look at what happens and the risks associated with mixing these chemicals.
Examples of Compounds with Ionic Bonds
Ionic compounds form when elements share electrons. Here are examples of ionic bonds and ionic compounds.
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.
Hazard Symbol Quiz - Test Your Recognition of...
How well do you know laboratory safety signs and hazard symbols? Take this fun quiz to see if you can recognize potential dangers in the lab.
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.
Determine Concentration Using Titration
Here is an acids and bases example problem involving titration. A base of known concentration is used to neutralize an unknown concentration of an acid.
How to Make a Lichtenberg Figure in 4 Steps
Lichtenberg figures essentially capture the image of lightning. Here's how you can make your own Lichtenberg figure from common materials.
Which Mad Scientist Are You? - Mad Scientist...
If you were a famous mad scientist, which mad scientist would you be? Take this fun multiple choice quiz to find out.
Understand the Difference Between Accuracy and...
This is an explanation of the difference between accuracy and precision.
6 Homemade Modeling Clay Recipes
There are several ways you can make homemade clay for modeling, making ornaments, and for other projects and crafts. Here are several clay recipes, including a refrigerator clay, a clay you bake to harden, one you coat for a glossy finish, and one that works up and stays pliable much like store-bought modeling clay.
Periodic Table Quiz - Test Your Periodic Table...
Test your periodic table knowledge with this fun multiple choice quiz.
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.
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.
Name 5 Common Acids Found in the Home
Acids are common chemicals. Here is a list of 5 acids found in the home.
What Is STP?
STP, Standard Temperature and Pressure definition, as used in chemistry and other physical sciences.
18 Fun and Easy Slime Recipes
There's more than one way to make slime. Actually, there are lots of different recipes! Here are some of the best recipes for different types of slime, from normal slimy slime to eerie glow-in-the-dark slime.
Element Groups - Periodic Table of the Element...
Groups of Elements - This is an interactive periodic table of the elements.
How to Set Ice on Fire
Have you ever wondered whether you could set ice on fire? These are instructions for how to make ice appear to burn and also instructions so that you can actually set it on fire.
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 Colored Fire (Ask an Expert)
Learn how to color fire using these fun and easy instructions. Use the information to color flames in your fireplace, campfire, lab, or candles.
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.
Chemistry: What is a Solution?
Solution definition, as used in chemistry, chemical engineering, and physics.
Which Alchemy Element Are You? - Personality Quiz
If you were an alchemical element which of the 5 elements would you be? The classic 5 elements of alchemy are earth, fire, air, water and aether. Which best represents your personality? Take this fun multiple choice quiz to find out.
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.
What Is the Chemical Composition of Air?
Learn about chemical composition of the Earth's air. Percentages of the most common compounds are given, according to volume.
How to Make Natural Mosquito Repellent
It's easy to make your own natural mosquito repellent. You can control exactly what goes into the project so you won't need to worry about any unwanted chemicals.
Fun Ways You Can Make Fireworks at Home
Have you ever wanted to make your own fireworks? These are instructions for fireworks projects so you can make homemade fireworks.
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 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.
Top 10 Chemistry Demonstrations and Experiments
This is the list of my top 10 favorite chemistry demonstrations, experiments, and activities.
9th Grade Science Test
Test your general science knowledge of 9th grade science with this fun online multiple choice quiz.
Know the Names of 10 Common Bases
Here is a list of ten common bases with chemical structures.
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.
What is the Difference Between Molarity and...
Molarity and molality are both measures of concentration of solutions. One is the ratio of moles to volume of the solution and the other is the ratio of moles to the mass of the solution.
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.
Ever Wonder Why You're Not Supposed To Cut...
Learn why it's a bad idea to cut a nicotine patch, what happens if you do, and how to cut a patch safely.
How To Make Giant Unpoppable Bubbles
Learn how to make huge bubbles strong enough to pick up and examine.
What's the Mole Ratio in a Chemical Reaction?
This is the definition of mole ratio of a chemical reaction, with an example.
Remove Rust Stains Quickly and Easily at Home
Rust stains can be a challenge to remove because some treatments actually set the stain rather than remove it. Use a little chemistry know-how to successfully remove a rust stain.
Common Everyday Items That Are Radioactive
You are exposed to radioactivity every day, often from the foods you eat and the products you use. Here is a look at some common everyday products and foods that are radioactive.
How Do Flamingos Get Their Pink Color?
Have you ever wondered why flamingos are pink or orange? You've probably heard it has something to do with what flamingos eat, but do you know what exactly it is that produces the color?
What Makes Water a Polar Molecule?
Water is a polar molecule. Here is the explanation for why water is a polar molecule and why water is a polar solvent.
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 Onions Make You Cry
Find out why you cry when you cut onions and how you can keep it from happening.
Make Homemade Dippin' Dots Ice Cream
Dippin' Dots consist of ice cream that has been cryogenically frozen. Here's how to make your own Dippin' Dots ice cream.

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