In this lab, students mix cornstarch and water together to create a "mystery" substance, as a result of the rearrangement of atoms. This was a fun lab to introduce the concept of chemical reactions to my students. All steps of the scientific method are included. A full rubric is included for assessment.
**This lab is in Spanish - Find the English version here: http://www.teacherspayteachers.com/Product/Modeling-Chemical-Reactions-Lab-1188466