1. About Ozone
Read/annotate the text reprint: What’s Up with the Ozone Layer?
Diagram 1

2. About CFCs
Read/annotate the text reprint: What’s Up with the Ozone Layer?
Diagram 2

3. The Changing Ozone Layer
View each of the ozone graphs that follow
Determine what data is represented, via the title & X, Y variables
Discuss the pattern(s) visible in the data
Where the line is irregular, visualize a line of best fit
Create a thumbnail sketch of the graph in your lab notebook
A quick, abbreviated drawing, capturing the gist of the data
Interpret the data as a claim; record alongside your thumbnail sketch
Summarize the ‘story’ of the ozone layer as the analysis

4. Graph A

5. Graph B

6. Graph C

7. Graph D

8. Graph E

9. Graph F
CFC ratio in atmosphere