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ESS at Halcyon School
Home
Topic 1
1.1 Perspectives
1.2 Systems
1.3 Sustainability
Case Studies
HL Lenses
Extension Reading
Topic 2
2.1 Ecosystems
2.2 Energy Flow
2.3 Cycles
2.4 Climate & Biomes
2.5 Zonation & Succession
Topic 3
3.1 Biodiversity and Evolution
3.2 Human Impact on Biodiversity
3.3 Conservation and regeneration
Topic 4
4.1 Water Systems
4.2 Water Access, Use and Security
4.3 Aquatic Food Production Systems
4.4 Water Pollution
Topic 5
5.1 Soil
5.2 Agriculture and Food
Topic 6
Topic 7
Topic 8
8.1 Human Populations
8.2 Urban Systems
8.3 Urban Air Pollution
The IA
ESS at Halcyon School
Home
Topic 1
1.1 Perspectives
1.2 Systems
1.3 Sustainability
Case Studies
HL Lenses
Extension Reading
Topic 2
2.1 Ecosystems
2.2 Energy Flow
2.3 Cycles
2.4 Climate & Biomes
2.5 Zonation & Succession
Topic 3
3.1 Biodiversity and Evolution
3.2 Human Impact on Biodiversity
3.3 Conservation and regeneration
Topic 4
4.1 Water Systems
4.2 Water Access, Use and Security
4.3 Aquatic Food Production Systems
4.4 Water Pollution
Topic 5
5.1 Soil
5.2 Agriculture and Food
Topic 6
Topic 7
Topic 8
8.1 Human Populations
8.2 Urban Systems
8.3 Urban Air Pollution
The IA
More
Home
Topic 1
1.1 Perspectives
1.2 Systems
1.3 Sustainability
Case Studies
HL Lenses
Extension Reading
Topic 2
2.1 Ecosystems
2.2 Energy Flow
2.3 Cycles
2.4 Climate & Biomes
2.5 Zonation & Succession
Topic 3
3.1 Biodiversity and Evolution
3.2 Human Impact on Biodiversity
3.3 Conservation and regeneration
Topic 4
4.1 Water Systems
4.2 Water Access, Use and Security
4.3 Aquatic Food Production Systems
4.4 Water Pollution
Topic 5
5.1 Soil
5.2 Agriculture and Food
Topic 6
Topic 7
Topic 8
8.1 Human Populations
8.2 Urban Systems
8.3 Urban Air Pollution
The IA
2.1 Syllabus Reordered
Ecological Survey Techniques
Halcyon Yellow Rattle 2025
The individual yellow rattle plants identified by Halcyon School observers in 2025
Yellow Rattle Quadrat data
ESS IA Template
HL Content
EDGE Introduction.mp4
2.1 HL Content
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