by msander | Nov 4, 2018 | Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science
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...
by msander | Dec 11, 2017 | Gr 9-10 Science, Gr. 11-12 Chemistry
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. Contact Steve Spangler at steve@stevespangler.com Contact Steve’s business...
by msander | Dec 1, 2014 | Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Chemistry
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. Materials Plastic Apron Eye protection Package of Mentos mints 2 L bottle of diet carbonated pop Large test tube (the...
by msander | Oct 20, 2014 | Gr 9-10 Science, Gr. 11-12 Chemistry, Safety
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...
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