This lesson invites students to plan an investigation and use their collective knowledge to identify individual substances in a “mystery mix.”
The resource includes a story that provides context and relevance for students as they conduct an investigation to determine which substances are present in each bowl. Students plan and conduct their own investigation while applying their understanding of physical and chemical changes.
The resource can be integrated into a lesson sequence exploring changes to matter or as a summative performance task after students have had the opportunity to participate in other investigations around the concept of mixing substances. This resource may also be used as a supplement to the reviewed resource, “Taking the Mystery Out of Argumentation”.