Core idea
Explore ocean-floor relief, ocean water properties and the role of oceans in the hydrological system.
Define the process, locate it spatially, explain evidence, then connect cause with effect. Use a labelled diagram or map when it clarifies the answer.
Revision checks
- Define the central process or concept.
- Explain one cause-and-effect relationship with a specific example.
- What map, diagram or data would help test your explanation?