Fundamental Science Salt water egg experiment Result Some objects float on top of the ocean‚ and other objects sink to the bottom. Why? In this salt water egg experiment we can find a solution for this question. It was noted that to make the egg float salt is needed to dissolve into fresh water. When the egg was lowered into the fresh water container it started to sink. But when salt was added to the container the egg started to float. Adding salt to the water squishes more molecules
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IMPORTANCE OF FRESH WATER All living things on Earth need fresh water in order to survive But human beings become ill and may even die if they cannot get pure or clean and are forced to drink polluted water. Human beings can only last 3 day without fresh water. People died of thirst after the cyclone in 1999 because their supply of fresh water from irrigation channels was destroyed form tidal waves. However water is needed for many more purposes e.g. in agriculture and industries‚ but this water does not
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Fresh Water Resources Water - Basic Knowledge Made up of 2 hydrogen and one oxygen We can live without food for 50-60 days‚ but we can only live without water for 1-2 days (3 at most) Water resources are scarce Life without water is why we don’t live on mars Hydrologic cycle Describes the continuous movement and distribution of water on‚ above‚ and below earth’s surface By changing its state‚ water moves among great global reservoirs 3 stages: gas‚ liquid‚ solid (ice) When solid‚ it expands
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Water Crisis in UAE Introduction Water crisis refers to the situation where the available water within a geographical location cannot meet the water needs of the population in that location. This prevalent situation has drawn considerable attention in most countries due to its severity to humanity. Because of the tripling of the population in the 21st century‚ the demand for water has remained considerably higher than the available clean and safe water. Despite the fact that the earth is covered
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Chennai NATIONAL SCIENCE SEMINAR WATER CRISIS ON THE EARTH PROBLEMS AND REMEDIES Submitted by A. NAVEEN ANTO‚ Sri Jayendra Golden Jubilee School‚ Sankarnagar - 627 357‚ Tirunelveli‚ Tamilnadu. Date : August 27‚ 2008 CONTENT ♦ INTRODUCTION ♦ WHAT DO WE MEAN BY WATER CRISIS? ♦ WHAT CAUSES & TRIGGERS THE WATER CRISIS ♦ IMPACTS OF WATER CRISIS ♦ REMEDIES FOR WATER CRISIS ♦ CONCLUSION WATER CRISIS ON THE EARTH PROBLEMS AND REMEDIES INTRODUCTION Water the elixir of life feeds the planets
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Title : Water Crisis Introduction : - water always been a natural resource - 80 countries now facing water shortage ‚ 2 billion people lack access to clean water. - global demand for fresh water will vastly outstrip reliable supply in many parts of world. - 97.5% of water is sea water ‚ left 2.5 % of “ fresh water “ but inside include glacier ‚ ice packs ‚ soil moisture ‚ atmosphere ‚ groundwater . Factors driving to this situations : 1. Demographic pressure population growth rate
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Without water no life and no future‚ from this pint I am with the Indian Nobel said”‚ water is called the elixir of life”. Water is necessary for all living beings. Human beings‚ animal‚ all the kinds of plants need water. Although the earth consist of two third of water and third of land‚ many countries still face a crisis on storage of water. This crisis has the potential to be a reason that damages the nation. Yemen is one the highest rate of consuming of water sources in the Middle East. Therefore
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Sanitation goals BY S H A H N A S I R K H IS R O | 1/2/2014 12:00:00 AM PAKISTAN faces a crisis that threatens the lives of millions of Pakistanis every year. It is also a crisis which in its resolution offers the potential for increased wealth‚ health and dignity for the whole country. This crisis is in our access to water and‚ in particular‚ sanitation. They are the most basic of daily human needs‚ human rights recognised in international conventions to which Pakistan is a signatory
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WATER CRISIS IN INDIA India has many social problems and frequent water crisis in India is one of them. Food and drinking water are quite essential for people’s comfortable living. When these two are scarce sometimes people suffer untold miseries. India suffers from water shortage for cultivation and drinking despite the fact that many big rivers‚ some of them perennial rivers‚ flow through some parts of India. In the south there are the Krishna‚ Godavari‚ Cauvery‚ and other rivers. In the north
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Salt Water or Fresh Water‚ Which Would You Prefer? Many people wonder‚ what big differences are between salt water and fresh water? Is it just water with salt versus water without salt? Those are some common questions people have. Most people ask about the differences‚ but they forget about the similarities of salt water and fresh water‚ as well. Did you know that Salt water and fresh water have very different plant and animal life? There are also a few complex fish that can live in both
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