It’s been called the “vinegar and baking soda” reaction for a new generation. While science teachers have been dropping candies and mints into 2-liter bottles of soda for years in an effort to release all of the dissolved carbon dioxide, the Mentos and Diet Coke reaction became world famous in 2005. Continue reading
There’s nothing like a good hand warmer in your glove when you’re skiing. But how do they work? Our science guy Steve Spangler uncovers the science secret that makes your hand warmer work. Continue reading
In this teacher demo, Mentos mints are used to unleash the dissolved carbon dioxide in a 2 L bottle of carbonated pop, producing a 2-3 m fountain. Continue reading
Diluting acids to prepare a solution of a required concentration requires skill, training and common sense. This Flinn Scientific video offers good, practical advice on how to prepare dilute acid solutions. A safer alternative to working with concentrated acids is to purchase prepared dilute solutions. Always check the MSDS and your Board protocols before working with chemicals.