Science·Ocean Life·conceptual
Ocean Ecosystems
Understand ocean ecosystems as interconnected systems where living things (producers, consumers, decomposers) and non-living factors (temperature, salinity, light, currents) all interact, and that changes to one part affect the whole system
Suggested ages 9–11
Learning journey
Your child is diving into ocean science — learning about marine ecosystems, animal migrations, how human activities affect the ocean, and the vital role oceans play in Earth's climate.
Evidence of understanding
- Describe an ocean ecosystem as a system of living and non-living parts that interact
- Name key non-living factors that affect ocean life: temperature, salinity, light, currents
- Explain how a change in one factor (like temperature) cascades through the whole ecosystem
Assessment prompt
Can Ocean Ecosystems explain why warmer ocean temperatures don't just affect one species — they change the whole ecosystem, from the plankton at the bottom of the food web to the whales at the top?
Standards alignment
No external standards are linked to this topic.