Graphing pH Graphing pH levels in the ocean and making connections to ocean acidification.Students will explore the topic of ocean acidification. They will construct, analyze and interpret a pH graph. Students will develop analytical thinking skills. Topics Floats, Ocean Acidification AuthorsAmber Phillips Teacher Resources Lesson Plan Additional Resources Acid and Base | Acids, Bases & pH | Video for Kids [3-min video] Ocean Acidification [7-min video] What is Ocean Acidification? [3-min video] A Day in the Life of a Float [1-min video] Adopt-A-Float Viz page Next Generation Science Standards Crosscutting Concepts Stability and change Core Ideas PS1.B: Chemical Reactions ESS2.E: Biogeology Practices Analyzing and interpreting data Ocean Literacy Fundamental Concepts 1.E: Most of Earth’s water (97%) is in the ocean. Seawater has unique properties: it is saline, its freezing point is slightly lower than fresh water, its density is slightly higher, its electrical conductivity is much higher, and it is slightly basic.