After demonstrating the use of cabbage juice as a pH indicator, have your class experiment with their own breath, exhaling into the indicator, to show that carbon dioxide is acidic. As learners work, they also watch a video about coral reefs and how increasing atmospheric carbon dioxide also increases the carbon dioxide of the ocean water, making it difficult for coral to build strong skeletons. Consider using this lesson plan when teaching your class about climate change or global warming.

Concepts

global warming, climate change, coral reefs

Show More Show Less

Additional Tags

acidic ocean, climate change, global warming, coral reef, science

Show More Show Less

Pros

• Including both activities and videos makes the lesson engaging

Cons

• Accompanying lab sheet does not ask individuals to make the connection between the activity and the real world