middle school science

Especially JCE: May 2017

JCE May 2017 cover

Erica Jacobsen shares highlights from the May 2017 issue of the Journal of Chemical Education that are of special interest to high school chemistry teachers.

Exploring the Diet Coke and Mentos Experiment

Diet Coke and Mentos eruption

I think this experiment provides a fantastic vehicle to involve students of all ages in small, hands-on and exploratory research projects. Like many others, my students and I have investigated various aspects of this interesting fountain.

Chemistry in a Bottle

density bottles

Are you familiar with the dynamic density bottle experiment? This interesting experiment was invented by Lynn Higgins, and is sold by various science supply companies. Two immiscible liquids (usually salt water and isopropyl alcohol) and two different types of plastic pieces are contained within a dynamic density bottle. The plastic pieces display curious floating and sinking behavior when the bottle is shaken. You can find out even more about how a colleague and I have explored the experiment by attending our session within the ChemEd X Conference: Chemistry Education for the Next Generation.

What to do after AP? Build and test simple dye-sensitized solar cells!

solar cell with clips

Have you considered having your students make solar cells? If your AP kids can understand batteries, solar cells are a logical next step. I usually do independent projects after AP along with final presentations, but I stumbled upon this activity the other day and my mind exploded in excitement and thought I would share. In the future, I would definitely do this with my students!

Dry ice in five different liquids

Dry ice in five different liquids

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!

Gizmos Part II: Chemical Reactions

Gizmos Logo

Last month, I shared about a new PD opportunity I had the privilege of participating in called Gizmos. You can read about it here. After Thanksgiving break, my Chemistry 1 and Honors Chemistry 1 classes began our Chemical Reactions unit.