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Your search returned 62 results

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

Concept cartoon: producers

  • TLF-IDR11933

This image is a concept cartoon. It shows a boy and a girl discussing food chains. One character is stating that producers are always at the start of a food chain, while the other character is refuting this. The cartoon is intended as a stimulus for further discussion of the concept.

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Online

Interdependence in the environment

  • TLF-IDM025139

Within an ecosystem there are interdependent relationships between the species of that environment which are recognised and understood in Aboriginal and Torres Strait Islander ecological knowledge and practices. This classroom activity provides students with the opportunity to develop science understanding of the interdependencies ...

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Interactive

Who's for dinner?

  • TLF-IDL25

Look closely at a food chain and food web from a billabong habitat. Help animals to feed and survive. Play the role of a tadpole, fish or heron. Help the animal to grow and breed by feeding and avoiding predators. Notice that eating high-value food sources may increase an animal's risk of being attacked by predators.

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Video

Watering the largest river red gum forest

  • TLF-IDM019577

This nine minute video explores the importance of environmental flows to maintain the ecological health of the Barmah-Millewa Forest in the Murray Darling Basin. This forest is a RAMSAR site and an icon site of the Living Murray with great social, economic, cultural, environmental and spiritual significance. While the forest ...

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Interactive

Cassowary ecology quiz

  • TLF-IDL119

Explore facts about the life of cassowaries: physical characteristics; diet; habitat; life cycles; and locations. Interact with graphs to see how much people can help cassowaries. Work through ecology notes and resources. Answer questions as you go; express your answers as fractions. This learning object is one in a series ...

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Video

Dengue Mozzie

  • TLF-IDM016733

This nine and a half minute video segment from Catalyst is an excellent example of current Australian science, the use of biological controls on a pest and modern techniques and approaches to fighting the spread of human disease.

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Interactive

Studying Habitats

  • TLF-IDM016170

Students use this resource consisting of four slides with diagrams, written explanation and voice-over to understand the type of observations and measurements that need to be made when studying an ecosystem. There is a two-question quiz and a summary slide.

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Video

Sea Urchins

  • TLF-IDM016244

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 ...

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Video

Carbon country update

  • TLF-IDM016345

This five and a half minute video segment from Catalyst discusses the potential to manage controlled burning in Arnhem that reduces frequency of wildfires to provide other benefits. The potential to turn this into economic benefits from carbon trading is explored and the science investigations that will first be essential.

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Interactive

Science Talk 2007: Martina Doblin

  • TLF-IDM016398

An interview and lab tour with Dr Martina Doblin, a phytoplankton ecologist at UTS. Martina talks to students and their teacher from Concord High School about her work studying microscopic organisms such as the toxic algae that make up harmful algal blooms.

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Video

Weedy Seadragons

  • TLF-IDM016493

This five and a half minute video segment from Catalyst demonstrates how tagging is being used to study populations of sea dragons. The Weedy Seadragon is one of the most visually striking creatures in the sea but we still have a lot to learn about them.

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Text

Rainforest fruit power

  • TLF-IDM016451

This ABC In Depth feature article discusses human potential use rainforest fruit-bearing plants and the need to maintain biodiversity. Many biotic interactions that effect reproduction and dispersal are described. Issues about using seed banks to try to maintain biodiversity are discussed.

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Online

Biodiversity: protecting the environment

  • TLF-IDM020052

This study guide examines the complexity and importance of maintaining a vibrant and healthy farming environment including management of the biodiversity that pasture, livestock and natural fauna and flora. A range of articles and activities explore the challenges and opportunities that cattle and sheep farmers are embracing ...

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Text

Investigate: cane toads

  • TLF-IDA002118

This unit of work is designed to help students understand cane toads and their threat to the Australian environment and agricultural production. Why some animals are to be protected and others need to be eradicated. The resource includes a teacher guide, student learning journal and a PowerPoint presentation.

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Online

Who owns the sea?

  • TLF-IDA002170

This unit is a learning sequence that investigates the need to develop and maintain the sustainable use of marine resources. This unit identifies the need for responsible and ethical environmental decision making by humans, and explores how these decisions are made and who will be affected. It includes inquiry-based activities ...

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Video

Too cold for cane toads

  • TLF-IDM016198

A new study reported in this video segment has looked at how temperatures impact cane toad movement and has aided in the development of a model that indicates that their geographical spread is limited. An excellent example of the use of mathematical modelling in scientific research and how scientists have tried to address ...

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Interactive

Sites2See: Aim to sustain

  • TLF-IDM015319

A page supporting learning for sustainability, with selected links to interactive resources, including videos, games and activities for K-6 students, teachers and parents. This resource relates to the 'Aim to sustain' resources produced for Stage 3 and 4 students.

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Interactive

Science under the microscope

  • TLF-IDM015339

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 ...

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Interactive

Murray-Darling Basin Quiz

  • TLF-IDM016525

This is a ten question multiple choice quiz on student understanding of issues specific to the Murray-Darling Basin, but are examples of common Australian environmental problems resulting from human activities. This is a non-threatening activity that provides excellent explanations as feedback.

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Audio

Chemicals on the Great Barrier Reef

  • TLF-IDM016174

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 ...

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