Science
Ocean Life
Conceptual
9–11 yrs
Ocean Ecosystems
海洋生态系统
Description
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
Mastery Evidence
- 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 your child 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?
