Go to:  https://apclassroom.collegeboard.org/d/cnipmz6drs?sui=14,9   to watch Topic 9.1 Daily Video 1 which will identify the location and purpose of the ozone layer, then detail the natural formation and depletion of ozone.

Go to:  https://apclassroom.collegeboard.org/d/9ig8qyfxyr?sui=14,9   to watch Topic 9.1 Daily Video 2 which will explain how ozone can be anthropogenically depleted, and identify the chemicals that lead to this depletion.

Go to:  https://apclassroom.collegeboard.org/d/an869x7ajv?sui=14,9   to watch Topic 9.1 Daily Video 2 which will discuss the effects of ozone depletion, then apply topic content to practice questions.

Take notes on these videos and summarize important key points.  Focus your notes not just on content, but also how you are going to demonstrate you mastery of the content using science practices.  Be sure to answer and questions that are asked when you pause the video.  Check your answers!