Description
Topic 3.1: Biodiversity and Evolution
Master Topic 3.1 of the updated IB Environmental Systems and Societies (ESS) course with this comprehensive student workbook, fully aligned to the syllabus for first examinations in 2026. This workbook connects directly to the IB ESS videos on the IB ESSentials YouTube channel and additional resources on the Topic 3.1 page at MrKremerScience.com.
This workbook helps students understand biodiversity at genetic, species, and habitat levels arising through evolutionary processes driven by natural selection. Through guided notes, structured practice activities, and a complete answer key, students explore how variation, competition, and adaptation drive evolution, how speciation creates new species, and why biodiversity contributes to ecosystem resilience. Designed for both Standard Level (SL) and Higher Level (HL) students, it provides a clear pathway through the most important concepts and terminology in Topic 3.1.
Whether used in the classroom, for homework, revision, independent study, or exam preparation, this workbook encourages active learning and helps students develop the analytical skills required for success in IB ESS.
What You’ll Learn
Topic 3.1: Biodiversity and Evolution
Students explore:
- The three levels of biodiversity: genetic, species, and habitat
- How diversity enhances ecosystem resilience and function
- The role of evolution in producing biodiversity
- Natural selection as the driving force of evolutionary change
- How variation and competition create selective pressure
- How adaptation affects organism survival and reproduction
- Speciation and how new species arise
- The role of isolation in enabling divergence
- How richness measures species counts in communities
- How evenness measures the distribution of species
What’s Included
✔ Coverage of all Topic 3.1 syllabus statements for SL and HL
✔ Content aligned to the updated IB ESS syllabus (first examinations 2026)
✔ Key vocabulary tables with space for definitions
✔ Guided notes that mirror IB assessment language and command terms
✔ Structured practice activities including biodiversity analysis and evolutionary diagrams
✔ Exam-style short-answer and extended-response questions
✔ Critical-thinking opportunities aligned with Assessment Objectives AO1 and AO2
✔ Complete answer key included
Why Students Love This Workbook
Unlike traditional revision notes, this workbook connects evolution to conservation and ecosystem function. By exploring how natural selection creates biodiversity, students understand why protecting genetic and species diversity matters. Students build confidence while developing the skills to analyze, explain, and evaluate biodiversity patterns and evolutionary processes.
Students can use the workbook throughout the course or as a focused revision tool before assessments.
Ideal For
- IB Environmental Systems and Societies students
- Standard Level (SL) students
- Higher Level (HL) students
- IB teachers seeking ready-to-use classroom resources
- Homeschool learners following the IB curriculum
- Students preparing for quizzes, tests, and final examinations
Product Details
Format: Digital PDF Download
Course: IB Environmental Systems and Societies (ESS)
Subtopic: Topic 3.1 – Biodiversity and Evolution
Level: SL and HL
Answer Key: Included
Author: Bradley M Kremer
Publisher: IB ESSentials
Syllabus Alignment: First Examinations 2026
Important Information
This resource is independently produced and is not endorsed by or affiliated with the International Baccalaureate Organization (IBO).
Your purchase includes a license for individual educational use unless otherwise specified.
Explore additional IB ESS workbooks, revision resources, study guides, and teaching materials at ibessentials.org. (Coming soon!)
