Hello and welcome to my store! This is a lab that I use to explore a number of different ideas all at the same time: 1. The use of qualitative data in experimentation; 2. The differences between qualitative and quantitative data; 3. Chemical indicators; 4. Macromolecules; 5. Extensions to forensic science. There are two pages of teacher instructions at the end of the lab pages that can help you to successfully set up and run this lab with your students. My kids always have enjoyed this lab - despite (or maybe because of) the grossness factor. :) Enjoy!