Other Activities: The Great Dying Other Activities Permian Extinction TimelineVisualize cause-and-effect over time.Make a timeline showing volcanic eruptions, CO₂ increase, warming oceans, and mass extinctions.Ocean Acidification DemoShow chemical effects on marine life.Use crushed eggshells or coral fragments in vinegar to model acidifying oceans dissolving shells.Discussion: Which animals are most affected and why? I have completed this lesson Next Lesson