Activity #4: Investigating pH

Materials:  pH strips, lemon, vinegar (if available), baking soda, water, plastic cups, alka-seltzer

Part 1: Carefully view the below video and complete the summary in your workbook. 

Part 2: Using the information in the above video above, the pH strips shown below, and other miscellaneous materials provided (plastic cups, etc.) design and conduct a proper experiment to answer the question below. Wear safety glasses. Document your experiment in your workbook.  


What effect does does the contents of different liquids have on the pH of the liquid?