Sparking Marshmallows

Have you ever cooked a marshmallow in a microwave? In case you are not familiar with this experiment, when a marshmallow is heated in a microwave, gases trapped in the marshmallow expand and escape. When the gas molecules escape from the marshmallow, they push against the marshmallow, causing it to expand. To see this experiment, play the video below.

Stoichiometry Resources

Limiting PhET

Moles, mole ratios and stoichiometry have been frustrating topics for many of my chemistry students. The MOLE and Avogadro’s number get tangled up in other Chemistry jargon and students have stared at me like I am speaking another language. I have been around long enough to know this is a problem that many of us have faced. I have tried many ideas that have helped and I want to share a few. 

ChemEd 2013 Conference

Sunday, July 28 to Thursday, August 1, 2013, the largest conference in North America focused on teaching high school and introductory chemistry will be hosted by the University of Waterloo, Waterloo, ON Canada.

Teaching Chemistry With a Whole New "App"titude. Intro Blog 1.0

ChemAppLite

Allow me to introduce myself, my name is Doug Ragan and I have been a high school chemistry teacher for fourteen years.  Three years ago, I was approached by my high school principal and the conversation went like this,

Principal:  "You are one lucky guy."

Me:  "Really, why?"

Who am I and what is Inquiry?

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Who is Sarah Kong and why is she starting a blog for Chem Ed X about Inquiry?

JCE 90.01—January 2013 Issue Highlights

Cover of the January 2013 Issue of the Journal of Chemical Education

Celebrating 90 Years as the Premier Chemical Education Journal

The January 2013 issue marks the start of the 90th volume of the Journal of Chemical Education.  This latest issue plus the content of all past volumes, 1 through 89, are available at http://pubs.acs.org/jchemeduc.