IGCSEScienceEdexcelScience (Double Award)Biology4. Ecology & the Environment

4. Ecology & the Environment (Edexcel IGCSE Science (Double Award))

Get ready for your Edexcel IGCSE Science (Double Award) exams with our revision resources. Find everything you need to revise this topic, so you can go into your exam confident and prepared. Teachers and examiners write all our resources, and they’re designed specifically for each exam board. We regularly update them to match the latest syllabus, so you’ll only revise the most accurate, up-to-date information. Explore the collection below to get started.

The Organism in the Environment

  1. Population, Community, Habitat & Ecosystem
  2. Practical: Investigating Population Size
  3. Abiotic & Biotic Factors

Feeding Relationships

  1. Trophic Levels
  2. Food chains, Food webs & Pyramids
  3. Transfers Along a Food Chain

Cycles within Ecosystems

  1. Carbon Cycle

Human Influences on the Environment

  1. Biological Consequences of Air Pollution
  2. Greenhouse Gases
  3. Enhanced Greenhouse Effect
  4. Biological Consequences of Water Pollution

The Organism in the Environment

  1. Exam Questions

Feeding Relationships

  1. Exam Questions

Cycles within Ecosystems

  1. Exam Questions

Human Influences on the Environment

  1. Exam Questions