Oceanography – Deep Ocean (Part 2)
Today, our aspiring oceanographers wrapped-up their week-long ocean chemistry experiment (which examined the effect of pH on natural shells). After measuring the final mass of the shells and comparing that to the initial mass of the shells, students were able to conclude that ocean pH is an important abiotic factor for all ocean life, especially the organisms that need to build and maintain shells. Afterwards, they got to model and observe a chemical reaction that is contributing to ocean acidification. Our young oceanographers modeled how climate change and a greenhouse gas, carbon dioxide, can contribute to ocean acidification by watching a pH indicator (blue) change color (to yellow) before their very eyes!
Ask your camper: Why did the blue water turn yellow? (as CO2 dissolved into our blue “ocean water”, the color changed from blue to yellow, indicating a pH change from basic to acidic)