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Science / Year 9 / Science Understanding / Biological sciences

Curriculum content descriptions

Ecosystems consist of communities of interdependent organisms and abiotic components of the environment; matter and energy flow through these systems (ACSSU176)

Elaborations
  • exploring interactions between organisms such as predator/prey, parasites, competitors, pollinators and disease
  • examining factors that affect population sizes such as seasonal changes, destruction of habitats, introduced species
  • considering how energy flows into and out of an ecosystem via the pathways of food webs, and how it must be replaced to maintain the sustainability of the system
  • investigating how ecosystems change as a result of events such as bushfires, drought and flooding
Cross-curriculum priorities
ScOT terms

Ecosystems

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Biodiversity and farming for a healthy planet

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Education - Return to 1616 Ecological Restoration Project

This is a comprehensive education package based on of the world's most exciting ecological restoration projects that is happening right now in Western Australia! It features interactive virtual tours, 3D skulls, videos, real-action inquiry projects, research projects, native animal educational card games and activities, ...

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Gastropod fossil

This is a colour photograph of a fossil of a gastropod 'Tenagodus occlusus', showing the spiralled shell.

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Dinosaur fossil bone

This is a colour photograph of a fossil bone set against a black background. This bone is an opalised fossil of a femur, or thigh bone, of a hypsilophodont dinosaur. The blue colouration of this opalised fossil bone is clearly visible.

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Concept cartoon: producers

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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About evapotranspiration

This resource is a Bureau of Meteorology (BOM) web page about evapotranspiration. The resource explains what evapotranspiration is and provides information about how the Bureau's evapotranspiration values have been calculated. It explains how to access the Bureau's daily evapotranspiration maps and tables, provides information ...

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Forest learning: How is carbon stored?

This resource is a ten-page pdf produced by Forest and Wood Products Australia about the role forests play in reducing climate change. It includes sections on: properties of carbon; how carbon is cycled in ecosystems; the chemical formula for photosynthesis; and calculating CO2 stored in trees. The resource also includes ...

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Water: learn it for life! - year 7 science

This PDF unit of work is one of a series of resources accessible by searching the list in the series.It includes two teaching and learning sequences: 'Water journeys' focuses on the water cycle, and 'Pure water' focuses on the processes and people involved in creating and managing drinkable water. It provides Australian ...

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Sustainable table: meet your meat

This is a website about the environmental and animal welfare issues related to the consumption of meat. It contains sections on the amount of meat we eat; the environmental impacts of consuming meat; cattle, chicken, egg-laying-hen and pig-farming factories; and what can be done to improve the current state of the meat ...

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Sustainable table: the coming famine

This is a website about the key issues related to global food insecurity. It contains sections on the scarcity of primary resources; land degradation; land scarcity; waste; climate change; consequences of inaction; and proposed solutions. Photographs, statistics, graphs, maps and figures support the information. This resource ...

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The first modern humans in south-east Asia

This is a multilayered resource about the theories and evidence of the origins of the first modern humans in south-east Asia. It has four sections: Theories; The sout-heast Asian fossil record; The appearance of sout-heast Asian features; and The first modern Indonesians. The Related sections, Related items and Related ...

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Graptolite fossils - item 1

This is a colour photograph of graptolites fossilised in rock. These are specimens of 'Pendeograptus fruticosus'. The figures visible on the rock are cataloguing numbers.

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Bivalve mollusc

This is a colour photograph of a collection of bivalve molluscs ('Theora lubrica').

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Graptolite fossils - item 5

This is a colour photograph of a graptolite fossilised in rock. This species is 'Clonograptus persistens'.

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Designing urban carbon sinks lesson

In this lesson, students learn about the role of vegetation as carbon sinks, conduct field work to evaluate local carbon sinks and explore urban design issues. Students asses their own carbon footprints using the carbon footprint calculator, learn about carbon offset, carbon farming and carbon storage programs. Students ...