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by Tom Kuntzleman
Sat, 05/04/2013 - 06:35

I came across a simple, yet interesting experiment that was first described by Elizabeth Sumner Walter in 2001. She merely had students pour water into a dish containing some Gobstoppers candies.

Comments: 27
Recent activity: 1 year 3 weeks ago
by Sarah Kong
Thu, 05/02/2013 - 12:32

Inquiry is a fluid concept.  There are some truly fabulous activities on Grand Valley State University's Target Inquiry (TI) website (  Yes, I am biased as I was part of the first TI cohort, but there are several labs now that were written later and they, too, are terrific.

Recent activity: 10 months 11 hours ago
by Deanna Cullen
Thu, 05/02/2013 - 12:26

I spent my whole prep period today playing with a site I hadn't seen before: PHYSICS 2000 @   I need to spend some more time there.

Comments: 7
Recent activity: 10 months 9 hours ago
by Deanna Cullen
Sat, 04/20/2013 - 19:02

Celebrate Earth Day, which is on Monday, April 22, 2013. Earth Day was first officially recognized on April 22, 1970. This year the theme is "Our Earth: Handle with Care." The topics this year include water, air, plants/soil, and recycling.

Recent activity: 10 months 11 hours ago
by Deanna Cullen
Fri, 04/19/2013 - 09:35

If you haven't seen them yet, check out the final release of the .

Recent activity: 10 months 3 days ago
by Deanna Cullen
Thu, 04/18/2013 - 18:46

Whether it is a completely unique idea or just a twist on an old classic, engage in collaboration with other chemistry teachers around the world and publish your work. There are many venues and the pool of precollege chemistry instructors that are already contributing is relatively small.

Recent activity: 10 months 11 hours ago
by Doug Ragan
Tue, 04/16/2013 - 14:09

Moving from the computer lab to iPad? Then you need some apps. I have found two free apps that I use to replace computer-based gas laws simulations.

Comments: 1
Recent activity: 7 months 3 weeks ago
by Deanna Cullen
Sun, 04/14/2013 - 20:14

At NSTA (in beautiful San Antonio, Texas), this past week, I shared activities designed to explore three levels of representation AND provide formative assessment techniques to reveal student misconceptions. All of the activities shared have been featured in the Journal of Chemical Education or have been linked to research articles in JCE as supporting information.


Recent activity: 10 months 11 hours ago
by Tom Kuntzleman
Wed, 03/13/2013 - 12:54

Have you seen the new Crayola Crystal Effects Window Markers? You can draw on windows with these markers. Better yet, you can use these markers to teach students some chemistry! After drawing on a window with these markers and waiting a little while, the marker ink appears to crystalize! Check out the video.

Comments: 9
Recent activity: 9 months 3 weeks ago
by Tom Kuntzleman
Tue, 02/26/2013 - 15:31

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. Check out the video.

Recent activity: 9 months 3 weeks ago