In this lesson, students discover the chemistry behind the ozone layer’s depletion and recovery, then apply their learning to advocate for climate action.

Step 1 - Inquire: Students investigate the properties of ozone and oxygen to understand how the ozone layer protects life on Earth.

Step 2 - Investigate: Students learn about the Chapman cycle and complete a jigsaw activity about the causes of ozone depletion.

Step 3 - Inspire: Students create a social media post about a climate issue that is important to them, inspired by the success of the Montreal Protocol.