Starter quiz
- What makes Antarctica the coldest place on Earth?
- Its high altitude
- Its location at the South Pole and permanent ice cover ✓
- Its lack of rain
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- How does ice help keep Earth's temperature stable?
- It reflects sunlight, preventing too much heat from entering Earth ✓
- It absorbs sunlight and warms Earth
- It releases heat into the atmosphere
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- What is the difference between snow and ice?
- Snow and ice are the same thing
- Ice is liquid water, and snow is solid
- Snow is water, and ice is steam
- Snow is frozen water vapour, and ice is frozen water ✓
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- Which of these is a major threat to cold environments?
- Too many trees growing
- Climate change and melting ice ✓
- Rising sea levels
- More animals migrating there
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- Where is the largest ice sheet in the world located?
- Greenland
- Siberia
- Antarctica ✓
- Iceland
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- Which of the following animals is found in Antarctica?
- Emperor penguins ✓
- Lions
- Elephants
- Kangaroos
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Exit quiz
- Unlike a food chain, which is linear, a food ______ is complex and interconnected.
- 'web' ✓
- What is a producer?
- An organism that makes its own food using sunlight ✓
- An animal that hunts other animals
- An organism that eats only plants
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- What is a consumer in a food web?
- An organism that makes its own food
- A plant that gets energy from the sun
- An organism that eats other organisms ✓
- A decomposer that breaks down dead plants
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- Which animal is an apex predator in Antarctica?
- Emperor penguin
- Leopard seal ✓
- Antarctic krill
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- What is the role of krill in the Antarctic food web?
- They are primary consumers, feeding on phytoplankton ✓
- They are apex predators
- They are decomposers
- They are producers
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Worksheet
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Lesson Details
Key learning points
- Food webs display the transfers of energy within one location.
- Antarctic food webs contain phytoplankton (producers), krill and squid (consumers) and leopard seals (apex predators).
- Changes to food webs arising from overfishing can affect different species.
- The Ross Sea Marine Park Area has been established to help protect young fish.
Common misconception
A food web is linear.
A food web is not linear, it is complex and interconnected.
Keywords
Producer - an organism that makes its own food using sunlight
Consumer - an organism that eats other organisms for energy
Apex predator - an organism at the top of the food chain, with no natural enemies
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