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Tom Kuntzleman's picture

Rainbows in a Glass Density Demonstration

Sun, 06/22/2014 - 11:34 -- Tom Kuntzleman

One day during class I presented the disappearing rainbow demonstration and explained the chemistry behind it. After doing so, I had a student ask me if a particular bartending trick called “rainbow shots” was done in a manner similar to the way the disappearing rainbow demonstration is performed.

Sarah Kong's picture

To Inquiry or not to Inquiry . . .

Wed, 06/04/2014 - 18:20 -- Sarah Kong

Here is something to ponder as you think about your lab experiences this year:  I have been using an excellent inquiry lab for the past few years.  I think it does a fabulous job guiding the students through the amazing (yet often dull to students) world of specific heat equations and learning about calorimetry.  However, this semester, I returned to the old, traditional calorimetry lab.  I wan

Deanna Cullen's picture

Become a ChemEd X Contributor during BCCE 2014

Wed, 06/04/2014 - 10:38 -- Deanna Cullen
BCCE 2014

Will you be attending BCCE 2014? There is still time to register! This is one of the best opportunities for high school chemistry teacher professional development. Grand Valley State University BCCE organizers have worked to make this year’s BCCE an affordable and valuable experience for high school level teachers. High school teachers may register at the reduced rate of $210 ($350 for regular attendees). If you are attending, I hope you will consider attending our ChemEd X Workshop. We will provide training to those interested in contributing their ideas with our community of educators. See the workshop abstract below. I hope to see you in August!

Deanna Cullen's picture

Floating Squares

Tue, 06/03/2014 - 13:00 -- Deanna Cullen
floating squares

I was looking for a new demonstration to initiate a discussion about polarity and related properties to use as part of an exam review. I found a video at ChemEd X (this is part of a ChemEd X subscription). It is entitled “Floating Squares – Hexane and Water” (see note below). I have placed both solutions together before, but I had not added the squares. The demonstration fulfilled my needs. I could have used the original video and muted it if I had not had hexane to demonstrate with.

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