In this experiment, you will use a Decomposition Column and probeware as you investigate decomposition and related concepts. CO2 Gas Sensors, Light Probes, Relative Humidity Sensors, pH Sensors, Temperature Probes, and other sensors can be used to collect meaningful data in Decomposition Column investigations.


In the Preliminary Activity, you will gain experience using a pH Sensor and learn pH measuring technique as you determine the pH of a water sample.

After completing the Preliminary Activity, you will first use reference sources to find out more about the decomposition and related concepts before you choose and investigate a researchable question.