Water: Clickview videos

Professor Iain Stewart explores our complex relationship with water. Visiting spectacular locations in Iceland, the Middle East and India he looks at how control over water has been central to human existence...

In The Water we see that agriculture uses 72 per cent of Australia's water. The largest irrigation systems are in the Murray-Darling Basin, which produce 40 per cent of Australia's agricultural wealth. Salinity is threatening the future capacity of these industries. This episode examines just how saline the Murray-Darling system is and why it's getting saltier. Engineering has created an extraordinary ability to trap and use water - but at what cost to the environment? As the water gets saltier, irrigators are forced to use more water and the problem is exacerbated

Please note: This is from the Clickview PRIMARY Library 

Learning about Water introduces students to water and its various attributes and properties. Students will gain an insight into how 75% of the earth's surface is covered by water but only 1% is drinkable. Also investigated is the concept that water can be found in the form of a solid, liquid and gas. The program examines the water cycle, from how water is a valuable energy source to causing great destruction in the world.

Objective: To know about potable water and water treatment plants. Learning outcomes - students will be able to: 1. Define potable water. 2. Memorise various methods of purifying water. 3. Explain UV purification, chlorination and reverse osmosis. 4. Describe the process of water treatment in water-treatment power plants.

Bangladesh is one of the countries most seriously affected by climate change. It is constantly battered by cyclones, coastal surges, overflowing rivers and violent downpours. Climate refugees from across the country are pouring into the capital, Dhaka. But Bangladesh is fighting back. In rural areas communities are developing new and ingenious ways of coping with climate change to help people survive, easing the pressure on the country's capital.

This episode examines water's crucial role to life on Earth. Looks at the oceans in relation to temperature stability, the water cycle and the exchange of nutrients, oxygen and carbon dioxide between plants and animals. Even organisms on land carry an internal 'ocean'.

Objective: To know about the sources and uses of water, the various states and the inter-conversion of the various states of water and the water cycle. Learning outcomes - students will be able to: 1. Discuss the percentage of water on earth. 2. Identify the sources of freshwater. 3. State the various uses of water. 4. Discuss the various physical states of water and their inter-conversion. 5. Explain how freezing, melting, evaporation and condensation take place. 6. Describe how the water cycle operates in nature. 7. Explain the roles played by evaporation, condensation and precipitation in the water cycle.

Clean water is essential for human existence. However, international requirements are not met by the available supply. This programme examines rising global water demand and some of the serious issues with inadequate and/or contaminated water supplies. Incorporating a range of water management case studies from various parts of the world, it is an ideal resource for students of Geography.

Please note: there is an interactive version of this video. 

Dr Karl explains how most of the water in the world was created at the moment of the Big Bang. It's still being made across the universe whenever oxygen and hydrogen get together under the right conditions, but none of it's getting to Earth. Dr Karl and Steve Bosi at Sydney University decide to create some brand new water for themselves, rather than relying on water that may have been re-cycled through the intestines of plague-infected Londoners two hundred years ago. They discover making new water is not that easy. They reveal that the space shuttle is effectively a giant water factory that produces water at half a million dollars a litre. Most of the Earth's water is constantly recycled and just as the astronauts in the space shuttle recycle their own waste, Adam has decided to examine the basics of reverse osmosis. Taking a carefully collected sample of his urine, a baby's bathwater and some washing-up water, he's planning to share the end result with the studio audience. At this point it's interesting to illustrate how easy it is to mis-inform the public. Recycling is an emotional issue with many people violently against it. Yet what about the lethal dangers of DHMO? In Martin Place Yumi Steynes petitions against the substance that's present in 98% of cancers and linked to many other diseases. Of course DHMO is just plain old water by another name. As Adam's waste water continues to be processed, some basic science tricks in the studio demonstrate some of water's extraordinary properties such as water tension and the nature of ice. Which brings us to the fundamental question of how to best keep your beer or wine cool in an esky - by leaving the melted water in with the remaining ice, or out? With some studio lab rats we begin to answer this vital question. As we wait for the results, Karl gives us some basic tips on surviving in the bush if you run out of water. But what's much more likely to save your life is knowing how to survive a rip. The Geeks venture to Tamarama beach and meet rip expert Dr Rob Brander. While they're examining remarkable aspects of nature, the Geeks explain the mystery of rainbows and how no-one ever sees exactly the same one.

The Great Rift - The Great Rift Valley channels a huge diversity of waterways spanning from Egypt to Mozambique. Some lake and ocean deeps harbour previously unseen life forms, while caustic waters challenge life to the extreme.

Water and The Water Cycle explains the occurrence of water as ice, liquid and vapour, its climatic role, its properties and its cycle: to ground and back to sea. This program also includes a look at the issue of water on other planets and it's importance to life.

Please note: This has an interactive option. 

Objective: To learn about water pollution Learning outcomes - students will be able to: 1. Define water pollution 2. Discuss the causes of water pollution 3. Explain the types of water pollution 4. State the diseases caused by polluted water