Laboratory Cork Ring


Round-bottom flasks offer many advantages for chemical work that requires heating a liquid, but suffer from a major storage and handling drawback: They don’t sit flat on a work surface. The common solution is to equip the bench with one or more cork rings that the flasks can sit in,... Read more »

Diet Coke and Mentos Fountain Nozzle


The reaction of when a regular mint (or fruit) Mentos is dropped into a bottle of diet Coke can create a fountain of soda. Without a nozzle, you will have a Coke fountain only about 5 feet high. With this, you can have a Coke fountain up to 10 feet!... Read more »

Making Soap

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  • 12/18/2012 @ 10:54 pm

Just where and when humans first observed the chemical reaction between oil and potash is unknown. Legend says it may have occurred in ancient Rome, on Sapo Hill, in an unusual scenario where a creek flowed over a deposit of wood ash and animal fats, created through many years of... Read more »

Temperature Effects on Glow Sticks

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  • 12/18/2012 @ 10:42 pm

This science fair project was conducted to determine how temperature can affect the length of time a glow stick remains lit. The experiment was done by placing a glow stick in water with a temperature of 5°C, 15°C, 25°C, 35°C and 45°C. Read more »

Cable Dyeing


If you want an extension cord, power cord, or other plastic-insulated cable in an unusual color, and you can find one in white, there’s a good chance you can dye it to suit your preference using this technique. Turns out many cables are sheathed with PVC, and will take the... Read more »

On-Demand Benchtop Gas Generator


If you should find yourself in need of small volumes of gas at about atmospheric pressure for a reaction or project, generating it on the bench can be a convenient and inexpensive alternative to buying or renting a gas cylinder. It turns out there are a number of useful gas-generating... Read more »

Pneumatic Trough


Although it sounds like some kind of euphemism from Brave New World, a “pneumatic trough” is actually a very handy piece of classic chemistry lab kit. Besides providing a convenient means to collect samples of pure gases for various experiments, a pneumatic trough with a graduated container allows the easy... Read more »