Marine Ecosystems

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From colourful coral reefs to mysterious deep-sea zones, Marine Ecosystems helps learners (ages 7–14) discover the incredible habitats that make up our blue planet. Each lesson highlights how these ecosystems work — and why they matter.

Discover the vibrant world of coral reefs, how corals build these living structures, and why so many species call them home.

What’s Included

  • Lesson Plan (PDF)
  • Activity Sheet(s) (PDF)
  • Lesson Slides (PDF)

Learning Outcomes

Understand that corals are living animals that form reef structures



Explore the biodiversity of reef ecosystems

Recognise the threats reefs face from human activity and climate change

Lesson Packs

Want to dive deeper? Start with our Marine Science Hub:

Step into the coastal world of mangroves, seagrass meadows, and salt marshes — ecosystems that protect our coastlines and provide nurseries for ocean life.

What’s Included

  • Lesson Plan (PDF)
  • Activity Sheet(s) (PDF)
  • Lesson Slides (PDF)

Learning Outcomes

Identify the role of coastal ecosystems in supporting marine life



Explain how these habitats protect shorelines and people

Explore their importance for carbon storage and climate regulation

Lesson Packs

Want to learn more? Check out these extra resources:

Journey into the pelagic zone — the open ocean — where whales migrate, tuna roam, and plankton power life across the seas.

What’s Included

  • Lesson Plan (PDF)
  • Activity Sheet(s) (PDF)
  • Lesson Slides (PDF)

Learning Outcomes

Understand the scale and importance of the open ocean



Learn about plankton as the foundation of ocean food webs

Explore how open-ocean species adapt to long-distance travel

Lesson Packs

Keep exploring! Discover these related resources:

Descend into the mysterious deep, where sunlight fades, strange creatures glow, and life thrives under immense pressure.

What’s Included

  • Lesson Plan (PDF)
  • Activity Sheet(s) (PDF)
  • Lesson Slides (PDF)

Learning Outcomes

Identify the different ocean depth zones



Recognise adaptations of deep-sea life (bioluminescence, pressure resistance)

Explore the importance of deep-sea ecosystems and hydrothermal vents

Lesson Packs

Keep exploring! Discover these related resources:

WHAT'S NEXT?

You’ve explored the ocean’s habitats — now meet the creatures that call them home. From tiny plankton to giant whales, discover the diversity of ocean life.

Next Topic → Ocean Animals

Learn how marine species survive, interact, and inspire us to protect the blue world we share.

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