Ocean Acidification Scripps Classroom Connection

Atmospheric CO 2 Scripps Classroom Connection

co2now.org

Sources of CO 2 Natural vs. Anthropogenic Scripps Classroom Connection

Scripps Classroom Connection

Sinks of CO 2 46% 28% Air Forests Oceans Scripps Classroom Connection

Car Exhaust Demo Materials Access to a Car Exhaust Funnel (cheaper substitute: Index Folder) Large Tubing to fit Funnel (cheaper substitute: Hose) Large Beaker (cheaper substitute: Bucket) Distilled Water or Seawater pH Indicator Dye (BTB or Phenol Red) Scripps Classroom Connection

Ocean Acidification Balloon Lab Materials Balloons Straws (cut in half) Small Rubber Bands 250 mL Beakers Seawater pH Indicator Dye Tape Measures Calculators Scripps Classroom Connection

Ocean CO 2 Chemistry CO 2 H2OH2OCO H + HCO H+H+ + Scripps Classroom Connection

Seawater pH Measure of a solution’s acidity Few H + = High pH = Basic Lots of H + = Low pH = Acidic SW Scripps Classroom Connection

Ocean Acidification CO 2 H2OH2OCO H + HCO H+H+ + Seawater pH Scripps Classroom Connection

Candle Ocean Acidification Demo Materials Two wide, shallow glass dishes Tea Candles (3) Match/Lighter pH Indicator Dye Distilled Water or Tap Water Scripps Classroom Connection

CONCLUSIONS Increased Emissions = More CO 2 CO 2 Dissolves into Oceans Oceans Losing Base Scripps Classroom Connection