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Listed under:  Science  >  Life  >  Ecosystems
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 ...

Video

Termites: Destroyers or recyclers?

Be amazed by what these young scientists find out about termites. Discover where termites live and what they eat. You may be surprised to find out that they are not actually ants, and that they are blind! This video was a finalist in the 2013 Sleek Geeks Eureka Science School Prize competition.

Video

Catalyst: Aboriginal fire knowledge reduces greenhouse gases

Come on an eye-opening trip to Western Arnhem Land in northern Australia to find out how Aboriginal fire-control techniques are used to reduce greenhouse gas emissions by thousands of tonnes.On the trip you will also find out how exploding ping-pong balls are used to create low greenhouse gas firebreaks at the right time ...

Video

Why do mosquito bites itch?

What sounds do mosquitoes makes, and can you find out why those irritating little mosquito bites itch so much? Why do we need mosquitoes? Where do they fit in an ecosystem?

Video

Dyeing with red cabbage!

Many natural products, such as red cabbage and turmeric, can be used as a natural source of colour to dye fibres. Watch the dyeing demonstration in this clip to see how. Discover the chemistry of natural dyes, including the bonding properties of different pigments and how acid-base reactions can alter the colour of pH-sensitive ...

Video

Magical Land of Oz: Join the Numbat Taskforce!

Numbats are native Australian marsupials that can be found in Western Australia and South Australia. Unfortunately, their numbers are declining rapidly. What are the causes? What can we do to combat this and protect these unique Australian animals? Find out what one community group, the Numbat Taskforce, is doing to help ...

Video

To save a sad creek called Merri

Find out about some of the issues and solutions for managing waste and pollution in a local creek. View this clip called 'Is Merri Creek truly merry?', created by young reporters from North Fitzroy Primary School, Victoria. The clip was developed as part of the ABC Splash Live 'Making the news!' project, which featured ...

Video

Growing an organic edible garden

Find out about the roles that earthworms and other animals play in a sustainable organic garden. View this clip called 'Great pizzas', created by young reporters from Willunga Primary School, South Australia. The clip was developed as part of the ABC Splash Live 'Making the news!' project, which featured local sustainability ...

Video

Gardening Australia: Understanding bush foods

Did you know that you can mix the nectar from some native flowers with water to make a sweet drink? Explore the Royal Botanic Gardens of Sydney with Gardening Australia presenter Clarence Stockee, and discover plants used by Aboriginal people. Find out about some native Australian bush foods, such as Kurrajong seeds, and ...

Video

Landline: Water footprints in food manufacturing

How much water does it take to produce a large packet of M&Ms? Watch as the 'water footprint' of some household products is presented and hear the concerns expressed about the methods used to calculate these footprints. Discover how an examination of the water used by the components of some manufactured foods has led to ...

Video

Catalyst: Geoengineering - a solution to climate change?

What is geoengineering, and how is it being investigated by scientists as a means of combating climate change? Learn about some climate control techniques that could slow down or even reverse the effects of global warming. Hear an atmospheric physicist explain the pros and cons of geoengineering techniques.

Video

Catalyst: How will fire change the climate?

Considering the impact of a changing climate on the severity and frequency of fires is one thing, but how about the impact of fires on climate? Why does Professor David Bowman describe this scenario as a 'fire spiral'? What are the consequences of a world with fewer forests? As Professor Craig Allen explains, drought and ...

Video

Daisies describe an ecosystem

Ecosystems are affected by many factors including increasing temperatures, which many scientists believe threaten natural systems on Earth today. This creative clip uses a theoretical world of black and white daisies to show how changes to the natural reflectivity of a planet's surface impacts temperatures and populations. ...

Video

Stateline: Saving the northern hairy-nosed wombat

Just what is going on with the northern hairy-nosed wombat? Find out why scientists are working hard to understand more about this elusive Australian mammal. Watch this clip to find out about the ecology of this wombat species and to view some field and laboratory research aimed at saving it. You will also see some footage ...

Video

Magical Land of Oz: Conserving the Great Australian Bight

What do you know of the Great Australian Bight? Learn about some of the unique wildlife that lives here. What makes it such a good habitat for these marine animals? What are some potential threats facing this pristine environment?

Video

Magical Land of Oz: Koalas and climate change

The koala population in rural NSW has been declining over the years due to drought and heatwaves. What causes some of the temperature extremes experienced in this region? Dr Mella believes koalas normally get most of the moisture they need to stay hydrated from eucalyptus leaves. What has changed in recent years that means ...

Video

Carbon dioxide and greenhouse gases

Have you heard of greenhouse gases? What do you think they are? (The word 'greenhouse' is a big clue!) The delicate balance of greenhouse gases has been affected by the addition of an unprecedented amount of carbon dioxide (CO2) to our atmosphere in the last 150 years. Watch this video to find out how CO2 is being added ...

Online

Green packaging lesson

This lesson plan engages students in finding ways to reduce plastic waste in food packaging. Students investigate problems created by plastic waste then observe ways these issues are being addressed. They design new packaging for food items that currently produce excessive waste then test their designs objectively. The ...

Interactive

Field guide to South Australian Fauna - Google Play app

View descriptions of South Australian fauna together with maps of distribution, images and endangered species rating. Animals are grouped by mammals, reptiles, fishes, amphibians, birds or insects and other invertebrates. Info pages include images and animal sounds. Free when reviewed on 12/5/2015.

Interactive

Field Guide to Tasmanian Fauna - Google Play app

View descriptions of Tasmanian fauna together with maps of distribution, images and endangered species rating. Animals are grouped by mammals, reptiles, fishes, amphibians, birds or insects and other invertebrates. Info pages include images and animal sounds. Free when reviewed on 12/5/2015.