Ocean Acidification Data Analysis Worksheet (Climate Change, NGSS HS Biology)

Description

The chemistry of the ocean is changing in ways students can measure. As atmospheric carbon dioxide rises, the ocean absorbs more of it, pH falls, and the organisms that build shells and reefs feel it first. This worksheet puts students in the role of the scientists tracking that change — working with the actual variables marine researchers watch.

What’s inside

Per the current listing, students analyze trends in three connected data strands — atmospheric carbon dioxide, ocean pH, and marine organism health — through meaningful, differentiated data analysis. The exact component list (number of data sets/graphs, question sets, answer key) is not enumerated in the current listing and should be confirmed before this section is expanded.

How it runs in class

The analysis is differentiated, so the same worksheet serves students reading data at different levels of confidence. Use it as the core investigation in an ocean acidification lesson, as the data anchor before CER writing, or as the quantitative piece of a larger climate change sequence. Students leave with a trend they identified themselves — which makes the follow-up discussion about causes and consequences considerably easier to lead.

Standards alignment

NGSS: HS-ESS3-4, HS-LS2-6. Grades 8–12 · Biology, Environment, Marine Science.

The three data strands are the lesson: carbon dioxide alone is abstract, pH alone is chemistry-class, and organism health alone is a sad fact. Together they form a causal chain students can follow from the atmosphere into a shell. When students articulate that chain themselves — emissions up, pH down, shell-builders squeezed — they own the concept of ocean acidification in a way a definition never produces.

Want the writing follow-through included? This worksheet is paired with a CER writing component in the Ocean Acidification Mini Bundle. Want to move from the problem to the solutions? The Ocean Acidification CER Bundle has students evaluate alkalinity enhancement, oyster restoration, and seagrass restoration. More free resources are in the Free Library.