1. Plate Tectonics and Earth′s Layers – Identification of Earth′s layers, calculation of depth, evidence from continental movement, and characteristics of mid-ocean ridges.

2. Weathering and Erosion – Classification of weathering types, four types of erosion, and limpet adaptations for rocky shore survival.

3. Shark Biology and Conservation – Identification of blue shark fins, classification, decline in shark fin exports, and definitions of epipelagic and mesopelagic zones.

4. Marine Food Chains and Ecosystems – Pyramid of biomass, effects of high primary productivity, and role of seagrass beds as microplastic sinks.

5. Tides and Oceanic Influences – Mechanisms of spring and neap tides, factors influencing tidal height variation at different locations.

6. Seawater Chemistry and Coral Reefs – Composition of seawater as a solution, pH variation, and impacts of acidification on coral ecosystems.