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• TLF-IDM008770

This image displays a type of diagram known as a trophic (or ecological) pyramid. This example depicts the organisms and the matter and energy flows in a typical marine ecosystem. The diagram shows six levels of organisms from primary producers through to the top carnivores, arranged in a pyramid. Also represented is the ...

• TLF-IDM008903

The main screen shows a marine environment and research boat against a background of coastal hills and a fiord. There are two entry points for investigation: Phytoplankton clues and Sediment cores, containing five interviews with a scientist explaining how science investigations can be used as a forensic tool to investigate ...

• TLF-IDR12039

This collection, containing 26 digital curriculum resources, allows students to explore aspects of the flow of energy and matter in ecosystems. The resources comprise teaching sequences, units, worksheets, videos, podcasts and a card game. A variety of contexts is provided to allow students to investigate relationships ...

• TLF-IDM009241

This interactive learning activity consists of a series of virtual ecosystem models for exploring the interrelationships within food webs. Students can complete two experiments to test hypotheses about producer-consumer and predator-prey relationships. The activity is supported by a 'Lab book' in which students can view ...

• TLF-IDM016023

Do you know what is threatening the survival of the world's largest land carnivore? Watch this clip of a polar bear as it moves across the Arctic ice, and find out about what is happening in its icy world. The World Wildlife Fund's Margaret Williams explains the feeding habits and adaptations of the polar bear, and identifies ...

• TLF-IDM018539

The 1994 discovery of the Wollemi Pine in the Blue Mountains was a momentous event, but the story doesn't end there. This ancient 'living fossil' species is millions of years old but was on the brink of extinction. Watch this clip to explore the remote canyon environments where it grows and find out about the remarkable ...

• TLF-IDR11902

This learning sequence introduces photosynthesis and respiration. Students explore the roles of photosynthesis and respiration. They compare the differences between these two processes. They explain how energy moves through an ecosystem and some implications of the carbon cycle.

• TLF-IDM008887

This is a colour video clip of marine scientist Stephen Wing, from the University of Otago in New Zealand, discussing the role cockles ('Austrovenus stutchburyi') play in marine food webs in New Zealand. (Classification - Phylum: Mollusca; Class: Bivalvia; Order: Veneroida; Family Veneridae.)

• TLF-IDM008904

This is an interactive diagram of a New Zealand marine ecosystem. Selecting labels brings up a small screen with text and an image or a video. The interactive examines a simplified marine food web looking at the most significant components.

• TLF-IDM015870

Is carbon capture and storage (CCS) the solution to climate change? CCS technology captures carbon dioxide from the flue gases of coal burning power plants and takes it to long-term storage. The coal industry has high hopes that pumping the liquefied gas into underground reservoirs, or geo-sequestration, will provide safe ...