Using Visual BCA Tables to Teach Limiting Reactants
Melissa Hemling | Wed, 04/26/2017 - 11:10
Looking for a better way to teach stoichiometry? Melissa incorporates modeling into BCA tables.
inquiry-based discovery learning
You Are Invited: Chemistry Instruction for the Next Generation
Deanna Cullen | Mon, 04/24/2017 - 20:47
ChemEd X and the Journal of Chemical Education (JCE) are collaborating to offer a virtual conference like most have never seen before. It is not a webinar. You do not have to schedule specific hours to view a live presentation. I think of it as similar to a virtual book/journal club with the added benefit of having the author leading it. In this case, authors were selected from among those who have published recent articles, activities and research in JCE on the topic of student-centered instruction in chemistry. The theme of this inaugural conference is Chemistry Instruction for the Next Generation.
Investigations of Chemicals in Natural Food Coloring. Part 3: Sunflower
Tom Kuntzleman | Tue, 03/28/2017 - 08:39
The chemistry of the Sunflower dye found in McCormick’s Color from Nature food dyes is explored in this post. This is the last in a three-part series in which several experiments and demonstrations that can be done with Color from Nature food dyes are described.
Investigations of Chemicals in Natural Food Coloring. Part 2: Berry
Tom Kuntzleman | Mon, 02/27/2017 - 13:42
The chemistry of the Berry dye found in McCormick's Color From Nature food colors is explored. This is part two of a three-part series in which the chemistry of McCormick's Color From Nature food colors is presented.
LED lights and the Periodic Table
Chad Husting | Sun, 02/19/2017 - 09:31
Every LED light has a "band gap". Electrons are pushed into an empty orbital which is negative and then the positive end of the circuit attracts the electrons. As they go down in energy through the band gap, they emit light. The larger the band gap, the more energy, the smaller the wavelength and the closer to the "blue" end of the spectrum. So, the key is to try to control the band gap and thus control the color of light.
Developing a High School Food Chemistry Elective
Erica Posthuma | Thu, 02/16/2017 - 09:38
Food chemistry is an interesting and fun class for students. Read the article for some suggestions about resources along with an outline of a unit developed around water in cooking.
Chemical Investigations of McCormick's Color From Nature Food Colors. Part 1: Sky Blue
Tom Kuntzleman | Tue, 01/31/2017 - 09:15
The chemistry of the Sky Blue dye found in McCormick's Color From Nature food colors is explored. This is part one of a three-part series in which the chemistry of McCormick's Color From Nature food colors is presented.
Dry ice in five different liquids
Tom Kuntzleman | Sun, 01/01/2017 - 14:22
You probably know what happens when you place dry ice in water. Do you know what happens when dry ice is placed in acetone or glycerin? Read this and find out!
The Dry-Ice-in-Water Cloud
Tom Kuntzleman | Sun, 12/04/2016 - 18:54
Have you ever wondered where the cloud comes from when dry ice is placed in water? If you think the answer is “atmospheric water vapor”, be sure to read this post because experimental evidence suggests that this explanation is wrong.
A nice quick and easy stoichiometry lab...
Chad Husting | Sun, 11/27/2016 - 17:57
Students are told that they have to determine the amount of active ingredient in an antacid tablet. Then I ask them if they have any questions. First it starts with blank stares...then slowly the questions start coming. What exactly is the active ingredient? What does it react with? They are provided information that the active ingredient is baking soda.