IB DP ESS 6.4 Stratospheric Ozone Teaching Notes & PowerPoint 2026

This comprehensive teaching and revision resource covers the Stratospheric Ozone topic (Topic 6.4) from the IB Diploma Programme Environmental Systems and Societies course (first assessment 2026). It is designed to serve two purposes: as supplemental teaching notes for instructors and as revision material for students.

Editable PowerPoint Version Included

In addition to the printable PDF version, this resource includes an editable PowerPoint presentation that mirrors the full content. Teachers may edit slides, add case studies, embed videos, or adapt explanations to suit different class needs. This makes it flexible for classroom teaching, revision lessons, and digital learning environments.

What Makes This Resource Useful for ESS Teachers

Follows the Subject Guide Directly
The content is organised according to the IB ESS subject guide and covers all required assessment statements for Topic 6.4 in a clear and logical order, ensuring full syllabus alignment and easy lesson planning.

Helpful for New Teachers
If you are new to teaching ESS, this resource provides a structured pathway through ozone chemistry, UV radiation, and global environmental policy, significantly reducing preparation time.

Dual-Purpose Design
Use the material as your own teaching notes during lessons or provide it directly to students as structured revision notes. The explanations are accessible for independent study while maintaining the depth required for IB assessments.

Content Included

• Structure and role of stratospheric ozone in the atmosphere
• Electromagnetic spectrum and types of ultraviolet radiation (UVA, UVB, UVC)
• Ozone formation and destruction as a dynamic equilibrium
• Ozone-depleting substances including CFCs and halons
• Causes and patterns of ozone depletion and ozone holes
• Impacts of increased UV radiation on human health and ecosystems
• Effects on phytoplankton, crops, and biodiversity
• Human influences on atmospheric chemistry
• The Montreal Protocol and international environmental management
• Systems thinking links between atmosphere, policy, and environmental impact
• Key terminology and definitions highlighted for revision
• Diagrams, charts, and structured summaries to support conceptual understanding

This is a straightforward, curriculum-aligned teaching tool that presents the Stratospheric Ozone topic in a clear, organised format, making complex atmospheric and environmental concepts easy to teach, understand, and revise for IB ESS assessments.