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Chemistry: Most Popular Articles

These articles are the most popular over the last month.
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.
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.
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.
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.
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.
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.
Is Red Bull Made from Bull Semen?
Find out whether the taurine in Red Bull came from bull semen.
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.
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'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.
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.
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.
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.
20 Chemistry Questions Quiz - 20 Chemistry...
Take a multiple choice quiz to test yourself about general knowledge in chemistry.
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.
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.
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.
Control vs. Experimental Group: How Do They...
Learn about the difference between the control group and the experimental group in a scientific experiment.
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 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.
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.
Scientific Experiments: What Is a Control Group?
A scientific experiment may be designed with a control group. Here's a look at what a control group is and how it helps increase the validity of an experiment.
Metric to Metric Conversions Quiz - Test Your...
Metric to Metric Quiz - Test Your Chemistry Knowledge
20 Science Questions Quiz - 20 Science Facts...
Take a multiple choice quiz to test yourself about general knowledge in science.
Understand the Difference Between Accuracy and...
This is an explanation of the difference between accuracy and precision.
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.
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.
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.
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
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.
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.
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.
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.
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.
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.
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.
What's the Difference Between a Scientific...
Learn about the difference between a scientific law, hypothesis, and theory.
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 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 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.
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.
Science Experiments: What Are Variables?
Variables are an important part of science projects and experiments. Here is an explanation of what a variable is and a description of the different types of variables you'll encounter in science.
Why Urine Is Yellow and Feces Are Brown
Have you ever wondered what chemical makes urine yellow? Here's a look at urine chemistry and the pigment responsible for the color.
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 Alum?
Find out what alum is and the uses of alum.
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.
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 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.
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.
Chemistry Laboratory Safety Quiz - Test Your...
Chemistry Laboratory Safety Quiz - Test Your Chemistry Knowledge
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.
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.
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.
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.
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 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.
Know the Types of Chemical Bonds
Learn about the different types of chemical bonds and the forces that affect the way electrons are shared.
Science Laboratory Safety Signs
This is a collection of safety signs commonly seen in a science laboratory, particularly a chemistry lab.
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.
Look Up Definitions in the Chemistry Glossary
This is a comprehensive chemistry dictionary. Use this alphabetical chemistry glossary to look up the definitions of chemistry terms.
Drink Coffee Before You Take a Nap
It's true drinking coffee before a power nap can make you feel more rested and awake than either coffee or a nap. Here's the science of how it works.
Learn What Chemical Properties Are and Get...
Here is an explanation of what chemical properties are, plus several examples of chemical properties of matter.
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.
Basics of Acids and Bases Quiz - Test Your...
Basics of Acids and Bases Quiz - Test Your Chemistry Knowledge
Simple Explanation of the Scientific Method Steps
This is a list of the 6 steps of the scientific method, with explanations of each step.
How Rust Works
Iron and steel can get a red coating called rust. Learn about the chemical composition of rust and how it forms and can be prevented.
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 Are the Steps of the Scientific Method?
The scientific method is a method for conducting an objective investigation. The scientific method involves making observations and conducting an experiment to test a hypothesis. Here are the steps of the scientific method.
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.
What Is the Difference Between a Chemical...
Learn how to distinguish between a chemical property and a physical property of matter.
What Are 10 Examples of Things That Are Not...
Everything that has mass and takes up space is matter, yet some things do not consist of matter. Here is a list of 10 examples of non-matter.
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.
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.
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.
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.
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.
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.
What Is a Dependent Variable?
A dependent variable is the variable being tested in a scientific experiment.
Periodic Table Quiz - Test Your Periodic Table...
Test your periodic table knowledge with this fun multiple choice quiz.
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.
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.
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.
Fun Middle School Science Projects
Find ideas for middle school science fair projects. These are projects suitable for the 6-8 grade level.
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.
Anode vs. Cathode: What's the Difference?
Here is how to define anode and cathode and how to tell them apart.
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.
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.
Common Examples of Covalent Compounds
These are examples of covalent bonds and covalent compounds.
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.
What Is a Controlled Experiment? - Definition...
One of the most common types of experiment is a controlled experiment. Here is a look at what a controlled experiment is and why this type of experiment is so popular.
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.
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.
Element Symbol Quiz - Element Symbols for the...
Take a multiple choice quiz to test yourself about the symbols for the first 20 elements.
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.
10 Examples of Matter
Can you name 10 examples of matter? Here is a list of more than 10 examples for you.
Top 10 Chemistry Demonstrations and Experiments
This is the list of my top 10 favorite chemistry demonstrations, experiments, and activities.
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'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.
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.
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.
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.
Science Projects You Can Eat
Looking for a fun way to have your science and eat it too? Try these kitchen science projects you can eat.
What Is an Isotope?
Isotopes are one form an element can take. This is the definition of an isotope, with examples.
Why Onions Make You Cry
Find out why you cry when you cut onions and how you can keep it from happening.
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.
What Is Volume?
Volume definition, as used in chemistry, chemical engineering, and physics.
What's the Difference Between Intensive and...
Intensive propertes and extensive properties are types of physical properties of matters. Here's a look at what intensive and extensive properties are and examples of them.
Why Mercury Is a Liquid at Room Temperature
Mercury is the only metal that is liquid at room temperature. Here's a look at what makes mercury different from other metals.
Can You Drink too Much Water?
Is it really possible to drink to much water? Learn about water intoxication and hyponatremia.
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.
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 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.
What Are Solutions, Suspensions, Colloids, and...
Learn how to distiguish between solutions, suspensions, colloids, and dispersions. Get examples of the different types of mixtures.
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.
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.
What Are the First 20 Elements?
Here are the first 20 elements and their symbols.
Balancing Equations Practice Quiz
Practice balancing chemical equations with this multiple choice quiz.
Did You Know People Have Invisible Stripes?
Learn about the invisible tiger stripes on human skin, called Blaschko Lines, that appear under ultraviolet light.
Better Safe than Sorry in the Chem Lab - Lab...
Make your chemistry laboratory experience safe by following these simple rules.
Scientific Method Quiz - Chemistry Tests and...
Scientific Method Quiz - Chemistry Tests and Quizzes
Which Elements Are in the Human Body?
Here is a list of the elements in the human body.
What Is the Density of Water?
The density of water is related to its specific gravity. The density is the weight of the water per its unit volume, which depends on the temperature of the water. While you can round the density to 1 gram per milliliter, here are more precise values for you.
Chem Students Should Know These Acid and Base...
Here are the names and formulas of some of the common acids and bases.
Teach Yourself Chemistry
You can teach yourself general chemistry with this step-by-step introduction to the basic concepts.
Fun and Interesting Chemistry Facts
Chemistry is a fascinating science, full of unusual trivia! Here are some fun and interesting chemistry facts for you.
Ology List of Sciences
An ology is a discipline of study, as indicated by having the -ology suffix. This is a list of science ologies.
Learn How To Determine Significant Figures
Learn what significant figures are and how they are used with respect to scientific measurements and calculations.
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 Distillation?
Explanation of the process of distillation, a common method used in chemistry to separate substances.
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!
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 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 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.
Why Does Ice Float?
Ice floats on water. Have you ever wondered why? Learn about hydrogen bonding and density to understand why ice floats.
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.
Examples of Compounds with Ionic Bonds
Ionic compounds form when elements share electrons. Here are examples of ionic bonds and ionic compounds.
Reasons Why Chemistry Is Important
Why is chemistry important? The answer depends on who you ask. Here is a selection of answers to the question, from scientists, teachers, students, and readers just like you.
How to Read a Meniscus
The meniscus is the curve seen at the top of a liquid in response to its container. When you read a scale on the side of a container with a meniscus, such as a graduated cylinder or volumetric flask, it's important that the measurement accounts for the meniscus. Here's how to read a meniscus.
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.
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.
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 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.
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.
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.
What Is Chemistry? - Definition
What is chemistry? Here is a dictionary definition for chemistry as well as a more in-depth description of what chemistry is.
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.
What is the State of Matter of Fire or Flame?
What is the state of matter of fire or flame? Is it a liquid, solid, or gas? Learn the answer to this question and get information about the chemistry of fire.
What Is a Dependent Variable in an Experiment?
A dependent variable is the variable being tested in a scientific experiment.
Is Dissolving Salt in Water a Chemical Change...
Is dissolving salt in water an example of a chemical change or a physical change? Here's a look at the process that occurs when you dissolve salt in water and an explanation of the answer to the question.
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