Description
Master Topic 5 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 helps students build a strong understanding of land, from the structure and function of soil systems to the sustainability of global food production and the causes and management of land degradation. Through guided notes, structured practice activities, exam-style questions, and a complete answer key, students develop the knowledge and skills needed to succeed in IB ESS. Designed for both Standard Level (SL) and Higher Level (HL) students, it provides a clear pathway through the most important concepts, terminology, and assessment objectives in Topic 5.
Whether used in the classroom, for homework, revision, independent study, or exam preparation, this workbook encourages active learning and helps students develop the analytical and evaluation skills required for success in IB ESS.
What You’ll Learn
Topic 5.1: Soil
Students explore:
- Soil as a system, with organic and inorganic inputs and outputs including decomposition, weathering, leaching, erosion, and salinization
- Transfers across soil horizons, including infiltration, percolation, biological mixing, and groundwater flow
- Transformations within soils, including decomposition, nutrient cycling, weathering, and salinization
- Soil as a seed bank, a store of water, and a source of essential plant nutrients including nitrogen, phosphorus, and potassium
- The role of soil in supporting biodiversity by providing habitat and ecological niches for microorganisms, animals, and fungi
- The role of soils in biogeochemical cycles, with detritivores and saprotrophs breaking down leaf litter
- Soil texture and how the relative proportions of sand, silt, clay, and humus influence primary productivity, water retention, and aeration
- Soils as carbon sinks, stores, or sources depending on relative rates of organic matter input and decomposition
- How carbon release from soils through decomposition, agricultural practices, and wetland drainage can contribute to tipping points in the climate system
- Soil profiles, horizons, and the classification of soil types linked to biomes, including brown earths and oxisols (HL)
- Factors influencing soil formation, including climate, organisms, geomorphology, geology, and time (HL)
- Cation-exchange capacity and the chemical properties of sand, silt, and clay particles (HL)
Topic 5.2: Agriculture and Food
Students investigate:
- Land as a finite resource and the challenge of feeding a growing global population
- How land-use decisions can marginalize indigenous peoples and low-income communities
- How soil type and climate influence agricultural systems across different biomes
- The contrast between subsistence and commercial farming, and between large-scale and small-scale approaches
- Nomadic pastoralism and shifting cultivation as traditional agricultural systems and the pressures they face
- The Green Revolution: its origins, achievements, and sociocultural, economic, and environmental consequences
- The role of synthetic fertilizers in intensive agriculture and sustainable alternatives, including fallowing, agroforestry, and mycorrhizae
- Soil conservation techniques for managing erosion by water and wind, including terracing, contour ploughing, bunding, crop rotation, reduced tillage, and windbreaks
- Why diets lower in trophic levels are more sustainable, using energy transfer principles
- Food security as the physical and economic availability of a balanced diet for all individuals
- Global strategies for achieving sustainable food supply, including plant-based alternatives, reducing food waste, and increasing yields without expanding land use
- Alternative farming approaches including regenerative agriculture, soil regeneration, rewilding, permaculture, and zero tillage (HL)
Topic 5.3: Land Degradation
Students examine:
- The causes and consequences of land degradation, including overgrazing, overcultivation, deforestation, urbanization, and inappropriate irrigation leading to salinization
- How land degradation reduces primary productivity, increases soil erosion, and threatens food security
- Desertification as a form of land degradation affecting dryland ecosystems, with reference to the expanding Sahel region
- The ecological and societal impacts of deforestation, including loss of biodiversity, disruption of biogeochemical cycles, changes to hydrological flows, and positive feedback effects on regional rainfall
- Land degradation as a planetary boundary concern and the links between soil health and climate change
- Strategies for managing and reversing land degradation, including afforestation, reforestation, agroforestry, soil conservation measures, and land restoration programs
- The role of environmental justice in land-use decisions and the disproportionate impact of land degradation on marginalized communities
What’s Included
✔ Coverage of all Topic 5 syllabus statements for SL and HL
✔ Content aligned to the updated IB ESS syllabus (first examinations 2026)
✔ Separate sections for SL and HL content
✔ Key vocabulary tables with space for definitions and named examples
✔ Guided notes that mirror IB assessment language and command terms
✔ Structured practice activities including systems flow diagram construction and data analysis
✔ Exam-style short-answer and extended-response questions
✔ Critical-thinking opportunities aligned with Assessment Objectives AO2 and AO3
✔ Complete answer key included
Why Students Love This Workbook
Unlike traditional revision notes, this workbook actively engages students in the learning process. The guided activities are designed around the language and command terms used in IB assessments, helping learners build confidence while developing the skills required to analyze, explain, compare, evaluate, and justify environmental concepts.
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)
Topic: Topic 5 – Land
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.
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