In Part A, you will carry out a class experiment to test the effects of increased amounts of CO2 on pH. Then, you will analyze time-series graphs to search for relationships between trends in atmospheric CO2, dissolved CO2 in seawater, and changes in ocean pH. In Part B, you will review and analyze the results of research compiled by the Woods Hole Oceanographic Institute on the effect of ocean acidification on a variety of marine organisms. You will then carry out a virtual labthe Virtual Urchinto study the effect of a more acidic seawater pH on sea urchin larvae.
After completing this investigation, you should be able to:
- Explain what ocean acidification is and why it is happening.
- Describe ways in which individual species and marine ecosystems might respond to ocean acidification.
- Describe how ocean acidification may impact the ability of oceans to store carbon in deep sea sediments.
Keeping Track of What You LearnThroughout these labs, you will find three kinds of questions.
- Checking In questions are intended to keep you engaged and focused on key concepts and to allow you to periodically check if the material is making sense. These questions are often accompanied by hints or answers to let you know if you are on the right track.
- Stop and Think questions are intended to help your teacher assess your understanding of the key concepts and skills you should be learning from the lab activities and readings.
- Discuss questions are intended to get you talking with your neighbor. These questions require you to pull some concepts together or apply your knowledge in a new situation.