Close message Due to maintenance between 17:00 to 19:00 on Thursday 30th May 2024, Scootle website may face disruption in service. We apologise for any inconvenience caused.

Search results

Listed under:  Science  >  Life  >  Ecosystems  >  Food webs
Interactive

Science under the microscope

A student-focused mobile web application that tests students? knowledge of the NSW Science curriculum. It will reuse videos and other components of 2010 Murder under the Microscope (Shockwave on the Shoreline) to provide a series of clues that unfold as the student answers science questions correctly. After receiving all ...

Video

Catalyst: Managing bushfires

To burn or not to burn? Investigate the science behind arguments for and against controlled burn-offs that aim to reduce the risk of bushfires to humans. Listen to the reasons Professor Mark Adams of Sydney University gives for a careful approach to prescribed burning.

Text

Animal survivor

This resource provides a scaffold for students to analyse the features of a Queensland animal and relate them to its survival success. Students then conduct the animal design challenge: Engineering new features for their animal to increase its chance of survival and future success. Students also make predictions about how ...

Video

Landline: Spinifex research

What does spinifex grass contain that might prove useful in modern buildings? Watch this clip and discover how Aboriginal knowledge, combined with Western science, is unlocking the potential of spinifex. Find out about this natural resource and how it could become a new, sustainable material for the building industry.

Video

Catalyst: Chemical pollutants toxic to whales

Explore how chemical pollutants affect the Antarctic food web. A scientist shows that baleen whales are consuming Antarctic krill contaminated by accumulated residues of persistent organic pollutants (POPs) from pesticides and industrial chemicals. Find out why these pollutants are concentrated at the Earth's polar regions.

Image

Marine trophic pyramid

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 ...

Video

Farmland run-off into estuaries

This is a colour video clip of marine scientist Dr Candida Savage discussing nutrient run-off from farmland, and the effects it has on estuaries and other coastal environments. The clip shows Dr Savage, from the University of Otago, New Zealand, being interviewed. It also shows images of houses on the banks of estuaries, ...

Video

Understanding food webs

This is a colour video clip in which ecologist Associate Professor Stephen Wing of the University of Otago talks about the importance of understanding food webs, particularly in marine ecosystems. He gives examples of how such understanding has been applied in Fiordland, New Zealand. Still images shown include marine organisms, ...

Video

ABC News: Disease threatens fish

Imagine what would happen if a deadly fish disease found its way into Australia's biggest river system. Watch this clip to learn more about a disease threatening the ecology of the Murray-Darling River. Scientist, Professor Richard Whittington, explains that the disease could be the final straw for an endangered Australian ...

Video

BTN: Animal recognition system

We have all heard of human face recognition systems, but have you heard of animal recognition technology? Watch this clip to discover how an 'animal recognition gate' is being used to separate the sheep from the goats. Find out how this innovative application of a popular technology might help farmers manage pest animals ...

Video

BTN: South Australia's ancient sea fossils

Come on a palaeontologist's dig at Emu Bay, South Australia, and discover some weird-looking creatures frozen in stone. Find out what these fossils tell scientists about life on the ancient sea floor. There is a demonstration of how a fossil is formed, and you'll be surprised by the types of materials that have been preserved.

Video

What have we got here: yabbies

This four and a half minute snapshot video looks at Yingka or outback yabbies. The video explores the feeding requirements and biology of the yabby including its anatomy, colouring, preferred habitat and role in the ecosystem. It also explains how to catch yabbies. The video is one of ten in the series 'What have we got ...

Video

Sea Urchins

This 7 minute video segment from Catalyst describes an excellent example of how biologists have worked to investigate and solve a problem of an invading species of sea urchin that was devastating a marine ecosystem. The scientific approach to develop a biological control needed to rely on technologies such as radio tracking ...

Video

Management of the northern savanna

Around the world, tropical savannas are in serious trouble. This clip from 2007 explores the use of Aboriginal technology for sustainable management of the environment in Australia's huge northern tropical savanna. Hear from two environmental scientists why traditional fire-management practices may reduce the incidence ...

Video

Giant Cuttlefish

This 12 minute video segment from Catalyst outlines the fascinating and unique features of the giant cuttlefish and its mass breeding at Point Lowly. Then it explains how scientists have determined the vulnerability of this species- the fact that the eggs are sensitive to high levels of salinity and the fact that they die ...

Interactive

Catchment Detox

Students play the game and make decisions about the development of a catchment with competing economic and environmental demands. Students receive feedback on how sustainably their catchment has been managed.

Video

Water recycling

This 11 minute video segment from Catalyst provides an excellent explanation of the processes involved in recycling sewage for an urban water supply. It also provides a range of opinions and concerns in an excellent debate on the topic.

Audio

Chemicals on the Great Barrier Reef

This program deals with a range of human impacts on the Great Barrier Reef. Herbicides from land runoff have been traced to algae and sea grasses in river mouths and coastal zones along the Great Barrier Reef. Effects include retardation of photosynthesis and growth of corals. Other pressures on the reef include high water ...

Interactive

Interdependence

Students use this resource consisting of eight slides with diagrams, written explanation and voice-over to understand what is a community and how different organisms within a community depend on each other for their survival. There is a two-question quiz and a summary slide.

Interactive

Science Talk 2007: Jeremy Leggett

An interview with Dr Jeremy Leggett, global environmental expert from Solarcentury in the UK. Jeremy talks to a teacher from Leumeah High School about global warming, fossil fuels and the design of carbon neutral buildings.