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Listed under:  Science  >  Life  >  Ecosystems  >  Biogeochemical cycles  >  Water cycle
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Catalyst: Water through cracked soil

Watch scientists investigate water movement through soil that has been cracked by drought. Australian scientists demonstrate a new way to investigate how water moves through the cracks using electrical probes to measure soil moisture at different soil depths. This technology could help farmers more efficiently irrigate ...

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Catalyst: Turning stormwater into groundwater

Imagine how much your life would change if your water supply ran out. Yet, when it rains, so much water is lost as it runs into stormwater drains. Watch as scientists talk about re-directing stormwater to recharge a groundwater aquifer. Listen as they describe how they can use a natural system to remove contaminants from ...

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For the Juniors: Where does rain come from?

Rain comes from clouds but do you know how rain gets into clouds? This clip shows how clouds are formed (made). You will see how important the Sun is in making it rain.

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Foreign Correspondent: Cenotes

The Yucatán Peninsula is located in south-eastern Mexico and covers a vast area of coastline south of the Gulf of Mexico. It is a popular tourist destination for people who travel to cities such as Cancún to enjoy sandy white beaches. Explore the subterranean freshwater caverns of this region and discover why this pristine ...

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Foreign Correspondent: Damming the free and mighty Mekong

The Mekong has been a rare thing: a largely untouched and free-flowing river. Stretching for nearly 5,000 km from the mountains of Tibet to Vietnam's Mekong Delta, it has provided a way of life for millions of people and been an important trading route between south-western China and south-eastern Asia. In this clip from ...

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Lateline: Carbon capture and storage

Is carbon capture and storage (CCS) the solution to climate change? CCS technology captures carbon dioxide from the flue gases of coal burning power plants and takes it to long-term storage. The coal industry has high hopes that pumping the liquefied gas into underground reservoirs, or geo-sequestration, will provide safe ...

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This Place: Birian Balunah - the birthing of the rivers

Paula Nihot shares a story told to her by Yugambeh Elder Patricia O’Connor. It's the story of Wanungara, queen of the mountains, and her daughters Princess Toolona and Princess Caningera, and how their complicated relationships and choices explain the geography of the region.

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Catalyst: Toxic sediments

Learn how high levels of toxic sediments in Sydney Harbour have destroyed as much as 40 per cent of its invertebrates. Find out the main source of toxins. Learn how toxins become trapped in the sediment and distributed across the Harbour. Observe the devastating effects of toxic sediments on the food chain in 2010, when ...

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Anatomy of a raindrop

The water cycle is the circulation of water on, in and above Earth and it involves a number of stages and changes of state. This clip describes the water cycle and also how modern technology has contributed to our understanding of the shape of raindrops and its relationship to precipitation. Discover how raindrop shape ...

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Catalyst: Seals help climate research

Discover how seals are helping scientists study Antarctica, polar regions, oceans and climate change. Scientists use Weddell and southern elephant seals to gather data and monitor the way currents move heat around the world's oceans.

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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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Foreign Correspondent: Sustainable tourism

The Yucatán Peninsula in south-eastern Mexico is a popular tourist destination. This clip focuses on examples of sustainable tourism - tourism that aims to have a low environmental impact. View Tulum, a town under threat of being developed similarly to Cancún, a major tourist resort destination.

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Where does water go after it rains?

What happens to rainfall in Australia? Water usually flows downhill, and because we know where the hills are, scientists have been able to divide the country into drainage divisions, or catchments. Find out which drainage division you're in, and learn what happens to rainwater that doesn't make it to the sea. |Learn more ...

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Show me the water!

Where does the water in your tap come from? Fresh water accounts for only 3% of the earth's water supply and only 1% of that is available to us in lakes and rivers or in the atmosphere. But how much do we use for drinking water and what else do we use fresh water for? Watch this video to find out how NASA's Global Precipitation ...

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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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Water

This is a PDF resource that focuses on the theme of water in Australian artworks, featuring 15 different artworks using various mediums. Each page includes an image, description and context of the artwork, and information about the artist, as well as specific focus questions or key statements that prompt a response to the ...

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The USGS Water Science School

This resource is a website with extensive information about water, including the water cycle, water properties, surface water and groundwater, droughts, floods and tsunamis, and water quality. It also includes a section on hydroelectricity. There is an emphasis on data from the USA. The resource includes a photo gallery, ...

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Lakes in Antarctica

Scientists are not complacent. We still have a lot to learn about the water cycle. The discovery of glacial lakes under the ice in Antarctica actively transporting water between reservoirs was a surprise. These lakes can be up to 3km beneath the ice sheets. The pressure of the ice above helps to melt the ice, forming lakes. ...

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Cloud seeding

This nine and a half minute video segment from Catalyst describes how researchers from Monash University have hard evidence that cloud seeding can produce good amounts of extra rainfall. Data collected over a long period of time has give hope to scientists and environmentalists who are trying to reduce the impacts of droughts ...

Online

Running the rivers of the Murray-Darling Basin

This lesson sequence examines the role that river operators play in water resource management in the Murray-Darling Basin and explains how they direct water releases and track progress downstream for environmental watering and flood management. It includes a teacher PowerPoint presentation, separate teacher notes and a ...