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Welcome
Topic 1 Foundations of ESS
Topic 1.1 Perspectives
Perspectives Part 1a
Perspectives Part 1b
Perspectives Part 2
Topic 1.2 Systems
Why Environmental Systems?
Flows of Energy and Matter in detail
Types of System
The Earth as a System
Equilibria and Feedback – Part 1
Feedback in Systems
Modelling Systems
Properties of Systems
Topic 2: Ecology
2.1 Individuals, populations, communities, and ecosystems
The Species Concept
Populations: Abiotic and Biotic Factors
The Niche Concept – Core
Niche (HL)
Populations Interactions
Competition Overview
Population growth
Measuring Populations – Plant Communities
Sampling Vegetation 1
2.2 Energy and biomass
Solar Energy – the starting point
Photosynthesis and respiration in Ecosystems
Producers and Consumers
Tropic Levels
Food chains and Food webs
Ecological Pyramids
Measuring Biomass and Organic Carbon
What are Biomagnification and Bioaccumulation?
Microplastics and Non-Biodegradable Pollutants:
Sustainable Yield: Core and HL
Entropy (HL only)
Review of some ideas
2.3 Biogeochemical cycles
Biogeochemical cycles (Core)
Carbon Stores in the Lithosphere (HL)
2.4 Climate and Biomes
Biomes
2.5 Zonation and Succession.
Succession (SL).
Topic 5: Land
5.1: Soil
5.2 Framing and Agriculture. Part 1.
5.2: Agriculture and marginalised people
5.2 Feeding the World
5.2 Maintaining fertility
5.2 Soil Conservation Strategies
5.2 HL Traditional Harvesting
5.2 HL: Diets, Distribution, and the Sustainability Challenge
ESS 2024 Scope and Sequence
2.4 Climate and Biomes
Biomes
