Latest Articles and Resources
- Chemistry of Firework Colors - How Fireworks Are ColoredUpdated: Sat May 10 04:01:11 2008
Fireworks combine art and science. Learn about the chemistry behind firework colors, including the mechanisms of color production and a table listing colorants… - Crystal Science Fair Projects - Tips and Ideas for Crystal Science F…Updated: Fri May 9 01:09:40 2008
Crystals can make interesting and fun science fair projects. Here's a look at some tips and ideas for science fair projects for crystals and crystal growing… - Patio Table Crystals - Non-Toxic Outdoor Crystals for Glass TablesUpdated: Wed May 7 22:06:43 2008
Turn the surface of your glass patio table into a safe place for kids to explore crystals. Here's an easy crystal project you can do on any warm, sunny day using ingredients from your kitchen… - Chemistry Feature ArticlesUpdated: Wed May 7 22:03:55 2008
This is a collection of the most recent features added to About's Chemistry website, authored by Dr. Anne Helmenstine… - Chemistry Encyclopedia - Topics Starting with the Letter PUpdated: Wed May 7 22:01:22 2008
Use this online chemistry encyclopedia to look up chemistry concepts beginning with the letter P… - Chemistry Encyclopedia - Topics Starting with the Letter GUpdated: Wed May 7 22:00:19 2008
Use this online chemistry encyclopedia to look up chemistry concepts beginning with the letter G… - Snowflake Photo GalleryUpdated: Wed May 7 15:49:36 2008
Snowflakes take many forms. This is a photo gallery of snowflakes and ice crystals… - Snow Crystal False Color MicrographCreated: Wed May 7 15:49:35 2008
Snow Crystal False Color Micrograph… - Chemistry Encyclopedia - Topics Starting with the Letter SUpdated: Wed May 7 13:57:57 2008
Use this online chemistry encyclopedia to look up chemistry concepts beginning with the letter S… - Wilson Bentley's SnowflakesCreated: Wed May 7 13:54:34 2008
Wilson Bentley's Snowflakes… - Hoarfrost - Ice CrystalsCreated: Wed May 7 13:54:33 2008
Hoarfrost - Ice Crystals… - Ice CrystalsCreated: Wed May 7 13:11:39 2008
Ice Crystals… - SnowflakeCreated: Wed May 7 13:11:38 2008
Snowflake… - Snowflake ElectromicrographCreated: Wed May 7 13:11:38 2008
Snowflake Electromicrograph… - Snow ImagesCreated: Wed May 7 13:10:35 2008
Snow Images - Scanning Electron Micrographs… - Snow Crystal - Tsuzumi FormCreated: Wed May 7 13:10:34 2008
Snow Crystal - Tsuzumi Form… - Snow CrystalCreated: Wed May 7 13:10:34 2008
Snow Crystal… - Crystal Photo GalleryUpdated: Tue May 6 23:12:28 2008
This is a collection of photographs of crystals. Some are crystals you can grow yourself. Others are representative pictures of crystals of elements and minerals… - Morganite CrystalCreated: Tue May 6 23:11:21 2008
Morganite Crystal… - Emerald CrystalCreated: Tue May 6 23:11:21 2008
Emerald Crystal… - Hoarfrost - Ice CrystalsCreated: Tue May 6 23:11:21 2008
Hoarfrost - Ice Crystals… - Alum CrystalUpdated: Tue May 6 23:11:07 2008
This is a large crystal of alum, or aluminium potassium sulfate… - Ice CrystalsCreated: Tue May 6 23:10:15 2008
Ice Crystals… - Gemstone Photo GalleryUpdated: Tue May 6 23:09:14 2008
See photos of rough and cut gemstones and learn about the chemistry of the minerals… - OpalCreated: Tue May 6 23:09:12 2008
Opal… - OpalCreated: Tue May 6 23:09:12 2008
Opal… - MorganiteCreated: Tue May 6 23:09:11 2008
Morganite Crystal… - EmeraldCreated: Tue May 6 23:09:11 2008
Emerald Crystal… - AmberUpdated: Tue May 6 23:09:02 2008
Amber… - Calcite on QuartzCreated: Tue May 6 19:21:23 2008
Calcite on Quartz… - Brazilianite with MuscoviteCreated: Tue May 6 19:21:23 2008
Brazilianite with Muscovite… - AsbestosCreated: Tue May 6 19:20:21 2008
Asbestos… - Element Photo GalleryUpdated: Tue May 6 13:29:33 2008
This is a collection of photographs of the chemical elements… - GoldCreated: Tue May 6 13:29:25 2008
Gold… - Halite or Salt CrystalsCreated: Tue May 6 13:28:09 2008
Halite or Salt Crystals… - Pyrite CrystalsCreated: Tue May 6 13:28:09 2008
Pyrite Crystals… - Quartz CrystalsCreated: Tue May 6 13:28:09 2008
Quartz Crystals… - Gold Facts - Periodic Table of the Chemical ElementsUpdated: Tue May 6 13:24:32 2008
Get facts on the chemical and physical properties of the element gold… - Red TopazCreated: Tue May 6 12:55:43 2008
Red Topaz… - TopazCreated: Tue May 6 12:54:40 2008
Topaz… - Smoky QuartzCreated: Tue May 6 12:54:39 2008
Smoky Quartz… - Red TopazCreated: Tue May 6 12:53:37 2008
Red Topaz… - Topaz CrystalCreated: Tue May 6 12:53:37 2008
Topaz Crystal… - Pyrite or Fool's Gold CrystalsCreated: Tue May 6 12:53:37 2008
Pyrite or Fool's Gold Crystals… - Smoky Quartz CrystalsCreated: Tue May 6 12:52:34 2008
Smoky Quartz Crystals… - Glenn Theodore Seaborg (1912 - 1999)Updated: Mon May 5 21:50:31 2008
Glenn Seaborg is known for his work with transuranic elements… - Chemistry Encyclopedia - Topics Starting with the Letter BUpdated: Mon May 5 21:44:14 2008
Use this online chemistry encyclopedia to look up chemistry concepts beginning with the letter B… - Crystals - What Is a CrystalUpdated: Sun May 4 13:27:21 2008
Get the definition for a crystal and learn about some common types of crystals… - Chemistry Encyclopedia - Topics Starting with the Letter CUpdated: Sun May 4 12:40:50 2008
Use this online chemistry encyclopedia to look up chemistry concepts beginning with the letter C… - Build a Baking Soda VolcanoUpdated: Sat May 3 15:48:46 2008
How to make your own baking soda volcano… - Potato Clock - Make a Potato Battery to Power an LED ClockUpdated: Fri May 2 13:54:31 2008
A potato can function as an electrochemical cell or battery. It's fun to use a potato to power an LED clock… - Chemistry Encyclopedia - Topics Starting with the Letter FUpdated: Fri May 2 01:21:51 2008
Use this online chemistry encyclopedia to look up chemistry concepts beginning with the letter F… - Fruit Batteries - Use Fruit to Generate Electricity for a Light BulbUpdated: Fri May 2 01:19:28 2008
If you have fruit, a couple of nails, and wire then you can generate electricity to turn on a light bulb. Learn how to make a fruit battery. It's fun, safe, and easy… - Melting Snow & Ice with SaltUpdated: Wed Apr 30 14:24:57 2008
Melting Snow & Ice with Salt - Colligative Properties and Freezing Point Depression… - Science Laboratory Safety SignsUpdated: Wed Apr 30 01:23:56 2008
This is a collection of safety signs commonly seen in a science laboratory, particularly a chemistry lab… - Ionizing Radiation SymbolCreated: Wed Apr 30 01:23:48 2008
Ionizing Radiation Symbol… - Radioactive SymbolCreated: Wed Apr 30 01:18:36 2008
Radioactive Symbol… - Nonflammable GasCreated: Wed Apr 30 01:13:31 2008
Nonflammable Gas… - Flammable Gas SymbolUpdated: Wed Apr 30 01:13:31 2008
Flammable Gas Symbol… - Combustible Materials SignUpdated: Tue Apr 29 21:40:22 2008
Combustible Materials Sign… - Harmful or IrritantCreated: Tue Apr 29 21:39:26 2008
Harmful or Irritant… - BiohazardCreated: Tue Apr 29 21:39:26 2008
Biohazard… - ToxicCreated: Tue Apr 29 21:39:25 2008
Toxic… - OxidizingCreated: Tue Apr 29 21:39:25 2008
Oxidizing… - Environmental HazardCreated: Tue Apr 29 21:22:46 2008
Environmental Hazard… - FlammableCreated: Tue Apr 29 21:22:45 2008
Flammable… - ExplosivesCreated: Tue Apr 29 21:22:45 2008
Explosives… - CorrosiveCreated: Tue Apr 29 21:22:45 2008
Corrosive… - Invisible Inks - Make Your Own Invisible InkUpdated: Mon Apr 28 13:41:09 2008
Make your own invisible ink so you can write and reveal secret messages… - Chemistry Encyclopedia - Topics Starting with the Letter IUpdated: Mon Apr 28 13:40:12 2008
Use this online chemistry encyclopedia to look up chemistry concepts beginning with the letter I… - How to Make Liquid Magnets - Synthesize FerrofluidUpdated: Sun Apr 27 16:19:13 2008
Make your own ferrofluid, or liquid magnet, which can be used with a magnet to change the liquid's density and to form spikes and other amazing shapes… - Chemical Structures - Structures Starting with the Letter DUpdated: Fri Apr 25 18:47:11 2008
See chemical and molecular structures. These are structures having names starting with the letter D… - Chemical Structures Starting with the Letter DUpdated: Fri Apr 25 18:42:27 2008
Browse structures of molecules and ions that have names beginning with the letter D… - DDT or Dichloro-Diphenyl-TrichloroethaneCreated: Fri Apr 25 18:42:23 2008
DDT or Dichloro-Diphenyl-Trichloroethane… - DDT or Dichloro-Diphenyl-TrichloroethaneCreated: Fri Apr 25 18:41:22 2008
DDT or Dichloro-Diphenyl-Trichloroethane… - dUMPUpdated: Fri Apr 25 18:40:20 2008
dUMP… - Science PicturesUpdated: Fri Apr 25 15:37:47 2008
This is a collection of science photographs and clipart… - Safety GlassesCreated: Fri Apr 25 15:37:43 2008
Safety Glasses… - PipettingCreated: Fri Apr 25 15:37:42 2008
Pipetting… - Bunsen BurnerCreated: Fri Apr 25 15:37:42 2008
Bunsen Burner… - FireCreated: Thu Apr 24 00:19:01 2008
Fire… - Transition Metal SolutionsCreated: Thu Apr 24 00:19:00 2008
Transition Metal Solutions… - Gold and Silver Pennies - Chemistry ProjectUpdated: Wed Apr 23 22:57:07 2008
Take copper colored pennies and turn then silver, then make them gold. This is an easy chemistry project that uses common laboratory chemicals… - Chemical Structures - Structures Starting with the Letter SUpdated: Wed Apr 23 22:55:35 2008
See chemical and molecular structures. These are structures having names starting with the letter S… - Chemical Structures Starting with the Letter SUpdated: Wed Apr 23 22:51:42 2008
Browse structures of molecules and ions that have names beginning with the letter S… - Sulfuric AcidUpdated: Wed Apr 23 22:50:37 2008
Sulfuric Acid… - Sodium HydroxideCreated: Wed Apr 23 22:50:37 2008
Sodium Hydroxide… - Chemical Structures - Structures Starting with the Letter BUpdated: Wed Apr 23 16:13:05 2008
See chemical and molecular structures. These are structures having names starting with the letter B… - Chemical Structures Starting with the Letter BUpdated: Wed Apr 23 15:50:09 2008
Browse structures of molecules and ions that have names beginning with the letter B… - BZUpdated: Wed Apr 23 15:50:07 2008
BZ… - BenzeneCreated: Wed Apr 23 15:50:04 2008
Benzene… - Chemical Structures - Structures Starting with the Letter EUpdated: Wed Apr 23 15:39:41 2008
See chemical and molecular structures. These are structures having names starting with the letter E… - Chemical Structures Starting with the Letter EUpdated: Wed Apr 23 15:03:49 2008
Browse structures of molecules and ions that have names beginning with the letter E… - EthanolCreated: Wed Apr 23 15:03:45 2008
Ethanol… - Ether Functional GroupUpdated: Wed Apr 23 15:01:45 2008
Ether Functional Group… - Baking Soda & Vinegar Chemical VolcanoUpdated: Wed Apr 23 14:40:49 2008
Making a baking soda and vinegar volcano is safe and easy, plus it only requires a few inexpensive kitchen ingredients… - Chemistry Encyclopedia - Topics Starting with the Letter VUpdated: Wed Apr 23 14:13:45 2008
Use this online chemistry encyclopedia to look up chemistry concepts beginning with the letter V… - Chemistry Encyclopedia - Topics Starting with the Letter MUpdated: Wed Apr 23 14:09:53 2008
Use this online chemistry encyclopedia to look up chemistry concepts beginning with the letter M… - Worked Chemistry ProblemsUpdated: Tue Apr 22 19:04:16 2008
Examples of worked chemistry problems… - Molality Example Problem - Worked Chemistry ProblemsCreated: Tue Apr 22 18:57:53 2008
Here is an example of calculating concentration or molality of a solution… - Chemical Structures - Structures Starting with the Letter NUpdated: Tue Apr 22 02:01:42 2008
See chemical and molecular structures. These are structures having names starting with the letter N… - Chemical Structures Starting with the Letter NUpdated: Tue Apr 22 01:58:53 2008
Browse structures of molecules and ions that have names beginning with the letter N… - NADHCreated: Tue Apr 22 01:57:50 2008
NADH… - norvalyl chemical structureUpdated: Tue Apr 22 01:57:50 2008
norvalyl chemical structure… - Chemical Structures - Structures Starting with the Letter CUpdated: Tue Apr 22 01:52:12 2008
See chemical and molecular structures. These are structures having names starting with the letter C… - Chemical Structures Starting with the Letter CUpdated: Tue Apr 22 01:48:43 2008
Browse structures of molecules and ions that have names beginning with the letter C… - ChloramphenicolCreated: Tue Apr 22 01:47:37 2008
Chloramphenicol… - conanine chemical structureUpdated: Tue Apr 22 01:46:31 2008
conanine chemical structure… - Drugs - Photo Gallery of DrugsUpdated: Tue Apr 22 01:45:28 2008
See the molecular structures of common drugs, including drugs of abuse. Photos of the drugs themselves are also included… - ChloramphenicolCreated: Tue Apr 22 01:45:24 2008
Chloramphenicol… - Chlorine - How to Prepare Chlorine GasUpdated: Tue Apr 22 00:40:16 2008
These are instructions for preparing chlorine gas from potassium permanganate and hydrochloric acid… - Chemical Structures - Structures Starting with the Letter HUpdated: Tue Apr 22 00:38:13 2008
See chemical and molecular structures. These are structures having names starting with the letter H… - Chemical Structures Starting with the Letter HUpdated: Tue Apr 22 00:33:29 2008
Browse structures of molecules and ions that have names beginning with the letter H… - hydrosulfate chemical structureUpdated: Tue Apr 22 00:33:28 2008
hydrosulfate chemical structure… - Hydrochloric AcidCreated: Tue Apr 22 00:33:27 2008
Hydrochloric Acid… - ZincCreated: Mon Apr 21 23:38:20 2008
Zinc… - Zinc Facts - Periodic Table of the ElementsUpdated: Mon Apr 21 23:35:36 2008
Get periodic table facts on the chemical and physical properties of the element zinc… - Cobalt Facts - Periodic Table of the ElementsUpdated: Mon Apr 21 23:28:16 2008
Get periodic table facts on the chemical and physical properties of the element cobalt… - Colored Glass ChemistryUpdated: Mon Apr 21 23:25:40 2008
Learn about the chemistry of glass colors… - CobaltCreated: Mon Apr 21 23:13:41 2008
Cobalt… - ZirconiumUpdated: Mon Apr 21 22:49:56 2008
Zirconium is a lustrous, corrosion-resistant grayish-white metal… - ChlorineCreated: Mon Apr 21 22:49:56 2008
Chlorine… - Chlorine Facts - Periodic Table of the ElementsUpdated: Mon Apr 21 22:47:12 2008
Get periodic table facts on the chemical and physical properties of the element chlorine… - Carbon Dioxide - How to Prepare Carbon Dioxide GasCreated: Mon Apr 21 22:37:32 2008
These are instructions for preparing carbon dioxide gas from calcium carbonate and hydrochloric acid… - Ammonia - How to Prepare Ammonia GasCreated: Mon Apr 21 22:21:58 2008
These are instructions for preparing ammonia gas from ammonium chloride and calcium hydroxide in water… - Botulinum Toxin - BotoxCreated: Mon Apr 21 15:27:13 2008
Botulinum Toxin - Botox… - Botulinum Toxin - BotoxCreated: Mon Apr 21 15:22:05 2008
Botulinum Toxin - Botox… - Fitzroy's Storm Glass - Weather ChemistryUpdated: Mon Apr 21 12:53:22 2008
Chemistry behind Darwin's storm glass, with instructions for making your own… - Sample Chemistry Problems - Limiting Reactant and Theoretical YieldUpdated: Mon Apr 21 12:38:24 2008
Sample Chemistry Problems - Limiting Reactant and Theoretical Yield… - Calculating Concentration - Concentration Units & DilutionsUpdated: Sat Apr 19 14:53:07 2008
Calculate the concentration of chemical solutions in percent composition by mass, molarity, molality, and normality. Make dilutions by adding the correct volume of solvent to make a new solution… - Sulfur Hexafluoride Demonstrations - Fun with Sulfur Hexafluoride - …Updated: Wed Apr 16 22:45:07 2008
Sulfur hexafluoride is a non-toxic, invisible gas that you can use to perform interesting chemistry demonstrations. Breathe it in and make your voice much deeper when you talk. Pour it into a conta… - Percent Composition by Mass - Worked Chemistry ProblemsUpdated: Wed Apr 16 19:24:46 2008
Here is an example of calculating concentration using percent composition by mass of a solution… - senecionan chemical structureUpdated: Wed Apr 16 13:45:36 2008
senecionan chemical structure… - Sulfur HexafluorideCreated: Wed Apr 16 13:43:38 2008
Sulfur Hexafluoride… - Sulfur HexafluorideUpdated: Wed Apr 16 13:43:38 2008
Sulfur Hexafluoride… - Barking Dog Reaction - How to Do the Barking Dog Chemistry Demonstra…Updated: Tue Apr 15 13:53:20 2008
The Barking Dog chemistry demonstration is based on an exothermic reaction between nitrous oxide and carbon disulfide. Ignition of the mixture results in a bright blue chemiluminescent flash, accom… - Nitrous OxideUpdated: Tue Apr 15 13:46:44 2008
Nitrous Oxide… - Nitric Oxide or Nitrogen MonoxideCreated: Tue Apr 15 13:39:32 2008
Nitric Oxide or Nitrogen Monoxide… - CytosineUpdated: Tue Apr 15 13:35:28 2008
Cytosine… - Carbon DisulfideCreated: Tue Apr 15 13:35:28 2008
Carbon Disulfide… - Molarity Example Problem - Worked Chemistry ProblemsUpdated: Tue Apr 15 13:12:20 2008
Here is an example of calculating concentration or molarity of a solution… - Copper Facts - Periodic Table of the ElementsUpdated: Mon Apr 14 14:06:18 2008
Get periodic table facts on the chemical and physical properties of the element copper… - CopperCreated: Mon Apr 14 14:05:16 2008
Copper… - Colored Fire Spray BottlesUpdated: Mon Apr 14 13:19:03 2008
You can spritz a flame with chemicals to change the color of the fire. Colored fire spray bottles are easy to prepare and use common chemicals… - Rock Tumbler Instructions - Rotary TumblersUpdated: Mon Apr 14 00:12:50 2008
Rock Tumbler Instructions - Rotary Tumbler Rock Tumbling… - Rock Tumbler Instructions - Vibratory TumblersUpdated: Sun Apr 13 23:58:21 2008
Rock Tumbler Instructions - Vibratory Tumbler Rock Tumbling… - Metal Jewelry Stamps & MarksUpdated: Sun Apr 13 23:12:39 2008
Jewelry made from precious metals often is stamped with a mark to indicate the chemical composition of the metal. These stamps or engravings are called quality marks. Here's a look at what differen… - Tumbling Jewelry - How to Use a Rock Tumbler to Polish JewelryUpdated: Sun Apr 13 23:09:58 2008
You can use a rock tumbler to polish and clean your jewelry. Tumblers are great for smoothing rough edges on metal components, such as jump rings and earwires… - Chemistry Encyclopedia - Topics Starting with the Letter JUpdated: Sun Apr 13 23:07:50 2008
Use this online chemistry encyclopedia to look up chemistry concepts beginning with the letter J… - Rock Tumbler Basics - Before You Buy a Rock TumblerCreated: Sun Apr 13 20:56:54 2008
Are you considering getting a rock tumbler? Before you make a purchase, learn about the different types of rock tumblers and get tips on choosing the best tumbler for your needs… - Luminol Chemiluminescence Test for Blood - How to Use Luminol to Tes…Updated: Sun Apr 13 16:00:46 2008
You can use the luminol chemiluminescence reaction as a quick and easy forensic test for blood. Here's a look at what you need to perform the test, how to do it, and an explanation of how the lumin… - Chemistry Encyclopedia - Topics Starting with the Letter LUpdated: Sun Apr 13 15:45:40 2008
Use this online chemistry encyclopedia to look up chemistry concepts beginning with the letter L… - Gemstone List - Alphabetical List of Precious GemstonesUpdated: Sun Apr 13 14:09:50 2008
This alphabetical list of gemstones includes the mineral names of the gemstones as well as links to photos of the gems… - Amedeo Avogadro - Chemistry HistoryUpdated: Sat Apr 12 13:25:32 2008
Amedeo Avogadro - Chemistry History… - Chemistry News - Links to Articles and News SourcesUpdated: Sat Apr 12 13:19:23 2008
Find out what is new and exciting in Chemistry! Chemistry News - Links to Articles and News Sources… - Using Material Safety Data SheetsUpdated: Sat Apr 12 13:16:45 2008
Understanding and Using Material Safety Data Sheets - MSDS… - Ways to Reduce Fluoride ExposureUpdated: Sat Apr 12 13:11:41 2008
There are several steps you can take to lower your exposure to fluoride… - Chemical Structures & Chemistry Images - Chemistry Pictures & Molecu…Updated: Sat Apr 12 00:48:21 2008
Find chemistry photos and pictures, including molecular structures, images of glassware, gemstones, safety signs, elements, and famous scientists… - Chemistry - Periodic Table, Projects, and Homework HelpUpdated: Fri Apr 11 23:19:39 2008
Learn about the world of chemistry. Get facts for the elements in the periodic table. Find chemistry demonstrations and experiments and science fair projects. Get homework help with worked example … - Heliotrope or BloodstoneCreated: Fri Apr 11 22:13:57 2008
Heliotrope or Bloodstone… - AgateCreated: Fri Apr 11 22:13:57 2008
Agate… - QuartzCreated: Fri Apr 11 22:12:57 2008
Quartz… - Rose QuartzCreated: Fri Apr 11 22:12:56 2008
Rose Quartz… - TourmalineUpdated: Fri Apr 11 14:34:21 2008
Tourmaline… - Quartz CrystalsUpdated: Fri Apr 11 14:31:14 2008
Quartz Crystals… - AzuriteUpdated: Fri Apr 11 14:21:59 2008
Azurite… - AmetrineUpdated: Fri Apr 11 14:15:48 2008
Ametrine… - AlexandriteUpdated: Fri Apr 11 14:11:41 2008
Alexandrite… - ChrysoberylUpdated: Fri Apr 11 14:07:32 2008
Chrysoberyl… - HematiteUpdated: Fri Apr 11 14:05:28 2008
Hematite…