Ocean Acidification

Ocean acidification is a byproduct of increasing atmospheric CO₂ levels around the globe, which is also causing climate changes. This global phenomenon can be difficult conceptually for students, but it is easy to model using sensors.

Here’s a quick video using the Wireless CO₂ and Wireless pH sensors:

Using a few simple materials, this quickly demonstrates to students what impact gaseous CO₂ can have on the pH of water as it dissolves. Ask students to consider the limitations of this model: How does it differ from earth systems? How could the model be improved?

Looking to extend this into a student lab? We’ve got an inquiry lab where students can act as the CO₂ sources and monitor pH with a sensor, while learning more about the chemistry behind ocean acidification.

Free Downloads:

Here are a handout and PowerPoint presentation that have been used when performing this activity as part of a PASCO workshop.