π Dive Into Revision!
Your complete revision guide for Cambridge IGCSE Marine Science (0697). Choose a topic below to start revising with flashcards, quizzes, diagrams, mind maps, and mock exam questions.
πΊοΈ How It All Connects
1
π The Earth & Its Oceans
- Structure of the Earth
- Tectonic plates & seafloor spreading
- Ocean basin features
- Earthquakes & tsunamis
- Currents, tides & waves
π§ͺ Seawater
- Composition & salinity
- Temperature & density
- pH & dissolved gases
- Effects of depth
- Water cycle & oceans
π‘ Marine Organisms
- Cell structure
- Classification systems
- Major marine groups
- Adaptations
- Plankton
β‘ Nutrients & Energy
- Photosynthesis & production
- Chemosynthesis
- Food chains & webs
- Trophic levels
- Nutrient cycling
π Marine Ecology
- Ocean zones
- Coral reefs & mangroves
- Hydrothermal vents
- Symbiotic relationships
- Succession & biodiversity
π Human Impact
- Overfishing
- Sustainable fishing
- Pollution
- Climate change & oceans
- Conservation & energy
- Paper 1: Theory & Data Handling β 1h 45m β 80 marks
- Paper 2: Theory & Practical Skills β 1h 45m β 80 marks
- Total: 160 marks, Grades A* to G
- Mix of short-answer and structured questions