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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.
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.
Science Quiz - Test Your General Science...
Test your general science knowledge with this fun multiple choice quiz.
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.
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.
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.
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.
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.
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.
20 Chemistry Questions Quiz - 20 Chemistry...
Take a multiple choice quiz to test yourself about general knowledge in chemistry.
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.
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.
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 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.
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.
20 Science Questions Quiz - 20 Science Facts...
Take a multiple choice quiz to test yourself about general knowledge in science.
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.
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.
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.
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.
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.
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 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 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.
What Is Alum?
Find out what alum is and the uses of alum.
How Many Atoms Are There in the Universe?
Have you ever wondered how many atoms there are in the universe? Here is the number and the explanation of how scientists estimate the number of atoms in the universe.
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.
Make Colored Fire in Every Color of the Rainbow
These are simple instructions for making colored fire in all the colors of the rainbow.
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.
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.
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.
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.
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.
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.
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
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.
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.
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.
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.
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!
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.
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.
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.
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.
What Causes Brain Freeze?
If you've ever experienced a sudden stabbing pain in your forehead when eating ice cream or enjoying a cool drink then you know what brain freeze is. Do you know what causes brain freeze or how you can stop the pain?
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.
What Is a Pure Substance?
A pure substance or chemical substance is a material that is homogeneous and has constant properties throughout the sample. Here are examples of pure substances.
How Much Does a Cloud Weigh?
How much does a cloud weigh? Even though clouds float in the air, they have mass, and a lot of it! Here's how to calculate the weight of a cloud.
Anode vs. Cathode: What's the Difference?
Here is how to define anode and cathode and how to tell them apart.
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.
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.
Basics of Acids and Bases Quiz - Test Your...
Basics of Acids and Bases Quiz - Test Your Chemistry Knowledge
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.
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.
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.
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.
Try These Natural Mosquito Repellents
Learn about natural ways to repel mosquitoes and develop strategies to reduce your exposure to them.
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.
Easy Steps To Make Classic Borax and Glue Slime
Get step-by-step instructions for making classic slime.
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 Is the Difference Between Celsius and...
Learn the difference between Celsius and centrigrade temperature scales.
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.
Why Onions Make You Cry
Find out why you cry when you cut onions and how you can keep it from happening.
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.
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.
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.
What Are the First 20 Elements?
Here are the first 20 elements and their symbols.
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.
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.
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.
Can You Drink too Much Water?
Is it really possible to drink to much water? Learn about water intoxication and hyponatremia.
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.
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.
9th Grade Science Test
Test your general science knowledge of 9th grade science with this fun online multiple choice quiz.
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.
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.
How Can I Get Fluoride Out of My Water?
Learn how to remove fluoride from drinking water and how to reduce your exposure other ways.
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.
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.
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.
Answers to Common Snowflake Questions
Here are answers to common questions about snowflakes. Learn how snow forms, what shapes snowflakes take, why snow crystals are symmetrical, whether no two snowflakes really are alike, and why snow looks white.
Do You Know the Names of 10 Acids?
Here is a list of ten common acids with chemical structures.
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.
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 Is White Gold?
White gold is a popular metal for jewelry. Have you ever wondered what white gold is made of? Here's a look at the chemical composition of white gold and some of the properties of white gold.
Name 5 Nonmetals and 5 Metals
It's important to be able to distinguish between metals and nonmetals. Here is a list of five metals and five nonmetals and how you can tell them apart.
Who Is the Father of Chemistry?
Who is the Father of Chemistry? Here is a look at the best answers to this question and the reasons why each of these people might deserve the title.
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.
Fun and Interesting Chemistry Facts
Chemistry is a fascinating science, full of unusual trivia! Here are some fun and interesting chemistry facts for you.
Light Up Halloween With a Flamethrower Jack o'...
This is how to make the best Halloween jack o lantern. This jack o lantern features a long lasting flamethrower tower of flame, plus you can customize the color of the fire.
Know the Names of 10 Common Bases
Here is a list of ten common bases with chemical structures.
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.
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.
Properties of Nonmetals
Get information about the common characteristics of the nonmetals.
Do You Know the Difference Between Molarity and...
Both molarity and normality are measures of concentration. One is a measure of the number of moles per liter of solution and the other changes depending on the solution's role in the reaction.
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.
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.
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 the 3 Parts of a Nucleotide?
You may be asked to name the three parts of a nucleotide and explain how they are connected or bonded to each other. Here's the answer for both DNA and RNA.
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.
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.
How To Make Saline Solution at Home
Saline solution refers to a salt solution, which you can prepare yourself using readily available materials. The solution can be used as a disinfectant, sterile rinse, or for labwork.
Exactly How Safe Is Alum?
Have you ever wondered if alum is safe to eat or safe to use as an underarm deodorant? Here's a look at what alum is and whether it's safe.
Name 5 Common Acids Found in the Home
Acids are common chemicals. Here is a list of 5 acids found in the home.
Understand the Difference Between Accuracy and...
This is an explanation of the difference between accuracy and precision.
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.
Is Red Bull Made from Bull Semen?
Find out whether the taurine in Red Bull came from bull semen.
Top 10 Chemistry Demonstrations and Experiments
This is the list of my top 10 favorite chemistry demonstrations, experiments, and activities.
What Are the Strong Bases?
Strong bases are bases which completely dissociate in water. Here is a list of the most common strong bases.
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.
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.
What Really Happens If You Put Sugar in a Gas...
Learn what really happens if you put sugar in a car's gas tank.
5 Examples of Chemical Suspensions
A chemical suspension consists of particles in a fluid that can eventually separate. Here are 5 examples of suspensions.
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.
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.
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.
What Element is Atomic Number 1?
Learn about the element that is atomic number 1 on the periodic table.
What Properties Make Metals Unique?
Most of the chemical elements are metals of one variety or another. Learn about some of the properties common to this large element group.
What Does a Meth Lab Smell Like?
No one wants to live next door to a meth lab, but how do you know if there is one in your neighborhood? One way you might suspect illegal drugs are being made is by their smell.
How To Remove Super Glue (Yes, It's Possible)
Although Super Glue sticks to just about anything almost instantly, you can remove it, even from skin and clothes. Here's how to remove Super Glue or other cyanoacrylate adhesive.
These Homemade Mosquito Repellents Really Work
These homemade mosquito repellents really work! Readers share their personal recipes, tips, and tricks for keeping mosquitoes away the natural way.
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.
8th Grade Science Quiz
Could you pass an 8th grade science quiz? Test your general science knowledge with this fun multiple choice test.
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.
Teach Yourself Chemistry
You can teach yourself general chemistry with this step-by-step introduction to the basic concepts.
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.
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?
Common Examples of Covalent Compounds
These are examples of covalent bonds and covalent compounds.
What Is Valence in Chemistry?
This is an explanation of valence or valency in chemistry.
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.
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.
What Are Solutions, Suspensions, Colloids, and...
Learn how to distiguish between solutions, suspensions, colloids, and dispersions. Get examples of the different types of mixtures.
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.
Why Do You Add Salt to Boiling Water?
Why do you add salt to boiling water? There are a couple of answers to this common cooking question. Here's a look at the reason for salting water.
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 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.
What Is the Importance of Chemistry in Everyday...
Have you ever wondered about the importance of chemistry in everyday life? This is a question you may ask yourself if you're taking chemistry. Otherwise, finding an answer is one of the most common chemistry homework assignments. Here's a look at why chemistry is important.
How Mood Rings Work
Mood rings have a stone that changes color depending on your emotions. Learn how mood rings work.
Control vs. Experimental Group: How Do They...
Learn about the difference between the control group and the experimental group in a scientific experiment.
Why Does Ice Float?
Ice floats on water. Have you ever wondered why? Learn about hydrogen bonding and density to understand why ice floats.
6th Grade Science Quiz - Test Your 6th Grade...
Test your 6th grade general science knowledge with this fun multiple choice quiz.
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.
What Is Heavy Water?
You may have heard of heavy water and wondered how it was different from ordinary water. Here's a look at what heavy water is and some heavy water facts.
Chem Students Should Know These Acid and Base...
Here are the names and formulas of some of the common acids and bases.
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.
How to Turn Baking Soda into Usable Sodium...
These are easy instructions for making sodium carbonate, also known as washing soda or soda ash, from baking soda or sodium bicarbonate.
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.
Element Groups - Periodic Table of the Element...
Groups of Elements - This is an interactive periodic table of the elements.
Which Elements Are in the Human Body?
Here is a list of the elements in the human body.
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