Changes to the carbon cycle and climate due to human activities have had detrimental effects on the environment. One example of this is known as ocean acidification, which is the changing of the ocean's chemistry due to increased carbon dioxide in the atmosphere and ocean. In this activity, simulate ocean acidification by introducing carbon dioxide into simulated ocean water while measuring the pH over time. This kit contains enough materials for 8 groups of students and comes with a Teacher's Manual and student study guide copymaster. The activity covers AP Environmental Science primary learning objective STB-4.H.* Kit Includes: Simulated Ocean Water QuickPrep, for 1 Gallon Sodium Carbonate, 40 g 2 Baking Soda, 100 g 2 Vinegar, 500 mL 8 Pipettes 8 Tygon Tubing, 40 cm 8 Rubber #7 Stoppers, 2-Hole 8 Air Stones 8 Spoons DOT Info: Non-regulated. *AP® and the Advanced Placement Program are registered trademarks of the College Entrance Examination Board. The activities and materials in these kits were developed and prepared by Aldon, which bears sole responsibility for their contents.