Students make their own glue in an over-the-top lab procedure. Once the activity is complete, students are challenged to improve the given procedure during which they draw out the 12 Principles of Green Chemistry in the process.
While using sodium hydroxide to create the base of their shampoos, students observe an exothermic reaction, measure the amount of heat, create a temperature over time graph showing their results, and determine ambient temperature strategies to use in the lab.
Using GoodGuide.com as a basis for data, students use a graphic organizer, the orb, to make determine which shampoo is the “greenest”. There are product sheets with background information on three separate shampoo brands.