A new semester begins!
Sarah Kong | Tue, 01/13/2015 - 13:41
A good inquiry activity is an engaging way to begin a new semester.
Inorganic Chemistry
Ions or Molecules? Polymer Gels Can Tell
In this Activity, students first prepare a gel using the superabsorbent polymer sodium polyacrylate (found in certain diapers) and water. The gel is split into piles and samples of different compounds are sprinkled on the piles. Students determine that ionic compounds break down the gel, while covalent compounds have no effect on the gel.
Aluminum & Air Battery
In this Activity, students construct a simple battery from aluminum foil, saltwater, and activated charcoal. The battery can power a small motor or light. This Activity demonstrates oxidation and reduction reactions, which are integral parts of battery chemistry.