Earth’s most powerful ecosystem.
The ocean is Earth’s blue heart – a living, interconnected system that regulates climate, drives weather, and sustains life across the planet.
In this unit, students journey through five distinct ocean regions to explore how marine ecosystems shape our world. From microscopic plankton and powerful ocean currents to coral reefs and whales, learners uncover how natural systems connect – and what happens when that balance is disrupted.
Explore key topics in this unit
This unit examines how the ocean functions as a living system and what happens when that balance is disrupted.
Adaptation (Southern Ocean)
How do animals survive in the coldest seas? Discover how extreme environments shape evolution—from blubber and body shape to the specialised hunting tactics of orca ecotypes.
The Carbon Cycle (Arctic Ocean)
Explore how the ocean acts as a "planetary thermostat," moving carbon between the atmosphere and the deep to regulate Earth’s climate.
Ecosystems (Indian Ocean)
Dive into the "web of life"—from oxygen-producing phytoplankton to the vibrant biodiversity of coral reefs, kelp forests, and complex food webs.
Energy & Movement (Pacific Ocean)
Investigate the "heat conveyor belt" and how waves, tides, and currents distribute energy across the globe to shape our weather.
Conservation (Atlantic Ocean)
Investigate human pressures like noise pollution and bycatch, and explore the policy changes and community actions working to protect our oceans.
Understand what students will learn
This unit integrates curriculum science with real-world conservation action.
Scientific Foundations
Explain how the ocean stabilises Earth's climate by absorbing and storing carbon and heat.
Analyse the physical and behavioural adaptations that allow species to thrive in diverse marine environments.
Understand trophic structures and the role of biodiversity in sustaining ecosystem balance.
Real-World Applications
Identify major human threats, including industrial bycatch, plastic pollution, and habitat destruction.
Evaluate the effectiveness of conservation strategies like Marine Protected Areas (MPAs) and sustainable tech.
Apply systems thinking to solve complex marine challenges and propose solutions for a "Blue Future."
How do ocean predators hunt and survive in extreme environments?
Orca pod hunting strategies
Squid game in the deep
How do stingrays help dolphins hunt?
