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Can you guess the weight of Uluru?

What is the "wisdom of a crowd"? Mathematician Lily Serna investigates a mathematical phenomenon that suggests that if you have a large enough crowd, with a broad variety of people making estimates, then the mean (average) answer of the crowd will be accurate! Find out if a crowd can guess the weight of Uluru from the ground ...

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Scientists study suburban microbats

Discover the tiny bats that live in Australian backyards in urban areas, including large cities. Watch this clip to learn more about these elusive Australian mammals, and to find out about a large-scale survey undertaken in Melbourne. Scientist, Dr Rodney van der Ree, addresses a group of volunteers in the field and explains ...

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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 ...

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Catalyst: Volcanic eruptions at Mount Ruapehu

Imagine a volcano erupting kilometres away. You are afraid, worried for the safety of yourself and others. Paul Willis presents the work of New Zealand volcanologists conducting research at Mount Ruapehu, a volcano with a history of devastating lahar (water, sediment and rocks) flows. Learn more about lahar flows and the ...

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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.

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Catalyst: Managing groundwater for tomorrow

Seventy percent of Perth's water comes from underground. Imagine what would happen if that source of water dried up. It's a real possibility if the impact of the climate and human activity is not carefully managed. Watch as scientists show what causes groundwater levels to fall and the effect that has on the Earth's ecosystems. ...

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BTN: Tsunamis

Discover what powerful force triggers a tsunami. In this clip you will see the damage caused by tsunami, and find out why it occurred. Learn about what is happening on the ocean floor and the connection between tsunamis, earthquakes, volcanoes and tectonic plates. See how a warning centre is working to keep people safe ...

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Catalyst: Small scale measurements

What units of measurements do we use to describe incredibly small things like blood cells and atoms? Watch as you are taken on a journey to explain the different units of measurement that we use to describe the very small.

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Catalyst: Underground coal gasification

How are scientists using technology to get energy out of coal without having to dig it up? Find out how underground coal gasification (UCG) burns and converts the coal to gas underground. Visit UCG trial sites in Queensland and hear how UCG avoids some of the environmental effects of traditional coal mining, but may have ...

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The Australian Dream: Cultural identity

Cultural identity gives us a sense of connection and belonging and an understanding of who we are and where we come from. There is a direct connection between people's sense of cultural identity and their health and wellbeing. This clip explores some of our nation’s history, including how Australia Day is seen by both Indigenous ...

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Gardening Australia: Creating a wetland

Find out how a school uses stormwater to create a wetland habitat for native plants. Josh Byrne visits Swan Valley Anglican School to observe the growth of their vegetable garden and to help out in the creation of the wetland. Discover what plants are best for a wetland habitat and how it will increase biodiversity and ...

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Foreign Correspondent: The Mekong: A damming example

The government of Laos has plans for many revenue-raising dams along the Mekong River. Find out about a dam, the Nam Theun 2, which was completed in 2010 and lies across the Nam Theun river in the Nakai Plateau. This clip from the same year asks if the dam could be the flagship for others to be built along the Mekong. Discover ...

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Four Corners: Fire management strategies

What role do fire-behaviour specialists and ecologists have in fire management? Watch this clip to find out about issues relating to fire management in Australia, in particular prescribed burning.

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The Australian Dream: Racism

This clip highlights Adam Goodes’s belief that the whole community needs to work together to put an end to racism. Through the heartbreaking story of Nicky Winmar and Gilbert McAdam, you'll get an insight into how far we've come in tackling racism, but Adam shows us how far we still have to go. Find out how people used ...

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The Australian Dream: Introducing Adam Goodes

To get to really know people, it's important to learn about their lives and the impact they've made on the world. As you watch this clip, you'll learn all about Adam Goodes and who he is. You'll gain a deeper understanding of Adam’s path to becoming an advocate for Aboriginal and Torres Strait Islander people and why standing ...

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River Valley Civilisations: How did a river valley civilisation arise?

The world's first civilisations arose around rivers. Why do you think this was? Think about the characteristics of a civilisation and how advanced agricultural practices allowed civilisations to flourish. This video mentions four ancient civilisations. Can you think of other civilisations that emerged near a river?

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Interviews With 10 Australian Authors, Ch 1: Yasou! from Nadia Wheatley

Yasou! Five Times Dizzy is the story of a young girl who tries to bring happiness back into her Yaya's life by giving her a goat. Author Nadia Wheatley speaks with Tom Tilley about her memories of a Greek Australian family living in Newtown and of the years she lived in Crete as being the inspiration behind the story.

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Rebecca Lim and her writing process

How long does it take to write a YA book? Rebecca Lim fills us in and explains the role reading plays in the writing of her books. Why does she say that having an editor is important? Try challenging yourself to write a story in 100 words.

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The British arrive in Tasmania

Learn why, in 1803, the British established a colony in Tasmania, at Hobart Town. Find out about the hardships faced by the convicts and early colonists and the early industries that helped some of them prosper. Find out about the effect that displacement had on the local palawa people.

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Comparing fuel consumption

Is it more fuel efficient to drive or fly between two places? Watch this clip and learn how to calculate the answer. What are the various factors that need to be taken into account? This video was made using the American measurement of gallons per hour, American firgures for the average number of passengers in a car and ...