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Earthquake monitoring

This video introduces earthquake monitoring using seismometers and seismographs. It also features the National Earthquake Alert Centre. Students are asked to try making earthquakes at home using the accelerometers in their smartphones.

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Geography: Landscapes and Landforms

Join Shona from Geoscience Australia and explore the formation of Australia's coastal, desert and mountain landforms and landscapes.

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Liquefaction In Action

This short video examines the process of liquefaction and its impact on buildings and other structures. The video encourages students to investigate some of the ways engineers lessen the impact of earthquakes on buildings and to make their own liquefaction demonstration and extend it into an inquiry activity.

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Exploring Australia's Seafloor

This video, presented by marine ecologist Dr Rachel Przeslawski, explores how marine scientists make maps of the seafloor and what these maps are used for. Dr Przeslawski talks about her experiences as a marine scientist involved with making maps from ships and discovering the depth, shape and hardness of the sea floor. ...

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Catalyst: What are modular farms?

Modular farms are flexible and self-contained systems that allow you to grow herbs and vegetables without the need for soil or sunlight. What are some advantages of modular farms? What may be some of the disadvantages?

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Catalyst: How high will sea levels rise?

Much of the world’s population will eventually have to deal with the consequences of sea-level rise, but the question is: how high will the water get? Dr Graham Phillips investigates how scientists are turning to the distant past to predict the impact of rising sea levels. Watch scientists explore 120,000-year-old coastlines, ...

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Sciencey: Five things you should know about renewable energy

Check out how we make electricity, the different renewable energy sources we have developed and how batteries work. Then, find out about hydro-electricity and why Australia could one day be the world’s biggest exporter of renewable energy. Lastly, discover virtual power plants. Why is it important to focus on renewable ...

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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 ...

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Catalyst: What is a megafire?

Join Catalyst reporter Anja Taylor as she visits the Jemez Mountains in New Mexico and discovers the impacts of recent megafires on the landscape there. What is a megafire? And how is a megafire different from a regular wildfire? How have recent fires permanently transformed the landscapes that Anja and Professor Craig ...

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Understanding the causes of climate change

Did you know that climate change is not a recent phenomenon? In the past, natural events led to changes in the climate. Although natural events still affect climate, they're not enough to explain the big changes we've been seeing in the last 150 years. What changes on earth can account for such dramatic changes to our climate? ...

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Catalyst: Sustainable fish farming

There are already more people around the world who eat farmed fish than people who eat beef. With the world's population and demand for food increasing, why is it so important for us to farm sustainably? One fishery near Kakadu in the Northern Territory practises sustainable farming. Find out what makes this farm so sustainable.

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BTN: Aboriginal astronomy

Many ancient cultures studied the night sky, and we know this because it is reflected in some of the earliest stories we have on record. Learn about one of these stories in this video. Other than the Dreamtime stories, what other evidence might there be that the Aboriginal people studied the stars?

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Measuring gravity

Did you know you can measure gravity? The more mass an object has, the more gravity it has, so by measuring the mass of something, you can figure out its gravity. Why do you think climate scientists may want these measurements? Watch this NASA animation to find out.

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Towards food security in Afghanistan

This is a video about the progress towards food and water security in Afghanistan. It includes images and information about how the global economic crisis has affected the people of Afghanistan; the value of investment in agriculture production to reduce poverty in this region; and a water security project that is jointly ...

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Marla Spivak: Why bees are disappearing

This is a video of a TED (Technology, Entertainment, Design) talk by Professor Marla Spivak about the dramatic decline in the number of bees. The 16-minute video begins with a discussion of why humans should care about bees, including their critical importance for the world's food supply. Professor Spivak explains that ...

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Farmers, their animals and the environment

This is a video about the valuable genetic diversity of Asia's indigenous domesticated animals; the contribution the animals' genes make to local people's food security; and the results of the use of genetic technologies. The video identifies ever-present links between farmers, their animals and the environment by describing ...

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TEDMED: Are we ready for a Declaration of Food Interdependence?

This is a video clip of TEDMED speaker Ashley Atkinson describing a community program that promotes growing food together to transform the environment and to address issues of declining access to affordable, fresh produce. The video focuses on how the program, Keep Growing Detroit, provides resources to assist in the establishment ...

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Water reservoirs as climate change adaptation

This is a video about water availability for people living in the Peruvian Andes. It includes vision and information about water scarcity in this region and details of a Food and Agriculture Organization of the United Nations funded project involving the creation of a sustainable water management program. The program involves ...

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TEDMED: What is the source of all life?

This is a video clip of a TEDMED speaker, Howard Shapiro, presenting ideas about improving the nutritional value of plants to address malnutrition and the food requirements of a growing world population. The clip emphasises that poor nutrition has negative health and developmental effects on children, particularly those ...

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Upholding cassava's potential in Africa

This is a video about the importance of cassava for food security in Africa and how the Regional Cassava Initiative supported small-scale farmers whose crops were affected by viral diseases. Plant virologist James Legg explains the extent of the problem and how the viruses are transmitted, and Burundi farmer Aoron Sebomana ...