Energy Flow in Marine Food Chains

Energy Flow in Marine Food Chains

WALT: Explain how energy is transferred through an ecosystem Our Moana Aotearoa - What Lies Beneath Year 6 Science

Quick Write - Where Does Energy Come From?

Think about all the life in our ocean... Where does ALL energy in an ecosystem originally come from? Write your ideas down, then share with a partner

NZ Marine Food Chain: Energy Flow

Energy Loss: The 10% Rule

Only 10% of energy moves to the next trophic level 90% is lost as heat, movement, and growth This limits how many large predators can survive Explains the pyramid shape of ecosystems

Sort the Trophic Levels

Work in pairs with organism cards Sort into: Producer, Primary Consumer, Secondary Consumer, Tertiary Consumer, Apex Predator NZ species: Phytoplankton, Kina (sea urchin), Snapper, Squid, Dolphins, Sharks Draw arrows to show energy flow direction

Success Criteria Check

✓ I can identify where energy originates (the sun) ✓ I can explain how energy moves between trophic levels (through consumption, 10% rule) ✓ I can describe why energy loss limits apex predators (not enough energy at top) ✓ I can construct a labelled NZ marine food chain