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This document discusses the global issues associated with lack of access to safe drinking water. [2] Approximately 2.2 million people, mostly children, die every year from water-borne illnesses. [3] Half of the world's hospital beds are occupied by patients suffering from water-related diseases. Developing nations struggle the most, as 80% of their diseases are caused by contaminated water supplies. The authors provide suggestions for improving water safety, such as boiling water to remove minerals and germs.
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This document discusses the global issues associated with lack of access to safe drinking water. Key points include:
- Over 2 million people, mostly children, die every year from water-borne diseases. Half of hospital beds are occupied by patients suffering from such illnesses.
- 80% of diseases in developing nations are caused by contaminated water. Six thousand children die daily from lack of access to safe drinking water.
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Hello Everyone
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Kindly visit to this link foe survey=www.surveylegend.com/s/bf6
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World Water Day | Alex NoudelmanAlex Noudelman
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(c) Alex Noudelman - a presentation that engages students in a discussion about conserving one of the most precious energy sources - water.
Please like this presentation if you found it useful. Your support is appreciated.More from HRBranham (20)
Oil spills 
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The document discusses oil spill cleanup solutions. It describes the problem of oil spills from boats and drilling polluting the ocean and harming wildlife. Two proposed solutions are summarized:
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2) Attaching clay sponges to the edges of an existing grooved skimmer boat to absorb oil from the water surface during cleanup. The clay sponges would help the boat collect oil without harming ocean life.Water pollution
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This document discusses solutions to deforestation and habitat loss caused by cutting down trees. It proposes building structures that use living plants to naturally produce oxygen, while also providing housing and land for animals. The structures would have clear covers to allow sunlight and holes for watering the plants. Tubes would carry the oxygen produced by the plants outside to benefit both humans and animals. This aims to address the problems of reduced oxygen and loss of habitats from deforestation in a sustainable way.Branham ch5 sabertoothcurriculum
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As fishing and hunting became easier due to new technologies, one clever fisherman devised a system of property rights for fishing spots. However, this led to social problems as there was not enough space for all fishermen. Wealthy fish chiefs offered jobs to the propertyless but paid low wages, leaving workers' families without enough food. The tribe then implemented a tax system and government assistance to help the unemployed.Kalil and natalia
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The document summarizes how different objects reflect and refract light. It explains that a mirror reflects light because it is shiny, smooth and opaque, causing light to travel in a straight line. When light hits a prism, it refracts by bending as it passes through the prism and slows down. Water reflects above water by showing faces, and refracts under water by making objects look bent as light slows down when passing through it. A mirror reflects light due to its opaque and shiny surface, while a prism refracts light by allowing it to pass through and bend due to being translucent or transparent. Light always travels in straight lines and reflects or refracts at the same angle that it hits the surface.Jaqui 
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This document discusses how mass and weight differ, and how weight is affected by gravity. It explains that astronauts are weightless in space due to lack of gravity, but their mass remains the same. The document then provides a chart for students to calculate their weight on different planets and astronomical objects based on the object's gravity. It explains larger objects have stronger gravity and therefore people would weigh more on them.
Geotechnical engineers citlaly s
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A geotechnical engineer studies different types of soil like bedrock, clay, sand, and topsoil. This is done because before constructing buildings, it is important to understand the soil conditions in order to determine if the ground is suitable.
The student created models with different soil layers to simulate earthquakes and observe how the soils reacted. Topsoil caused buildings to fall over quickly, while clay provided more stability and prevented quick collapse.
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This document discusses key aspects of rainforests, including soil type, erosion, climate, plants, animals, and other facts. The dominant soil type in rainforests is topsoil, which supports many plant species. Heavy rainfall of 250 inches per year causes water erosion. The warm, wet climate allows rainforests to remain above 25°C year-round and rain nearly every day. Animals like monkeys and scorpions have adapted to live in the forest canopy and floor. While rainforests once covered 14% of the Earth's land, deforestation has reduced that to only 6% today.Presentation 3
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Geotechnical engineers test soil samples to ensure skyscrapers remain stable during earthquakes. Models of skyscraper foundations represent how they are built with pier foundations, though shaking models is not the same as real earthquakes. Tests found topsoil, sand, and clay were unstable during simulated quakes, while bedrock remained stable, though bedrock requires deep digging and is costly to access and repair if needed. Pier foundations help stabilize skyscrapers by extending deep into soil layers, preventing collapse during earthquakes. Bedrock is the recommended soil layer despite the challenges, as it ensures structures will not fall or need rebuilding.Zachary
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This document outlines a student's design of two solar ovens using different materials. The first design used sand, felt and dark cloth and had a total impact score of 6 but a low maximum temperature. The second design replaced the sand with additional felt and sheared the cloth, achieving a higher maximum temperature and total score of -2. Testing results are provided for both designs. Reflections note the improved design worked better and suggest further replacing the cloth with newspaper to lower the impact score.Jaxon holt designing a solar oven
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This document describes a student's design of two solar ovens and the testing process. For the first design, materials included felt, cloth and sand. Testing showed the oven only reached 49.4°C. For the second design, materials were changed to flat felt and shredded cloth. Testing showed this oven reached a higher temperature of 43.2°C but cooled quickly in the shade. The student concluded that better insulation was needed to retain heat for a longer period of time.Lesly alvarado
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This document describes a student's process of designing and testing two solar oven designs. The first design used white cloth, foam, and felt and scored 11 points total. It kept heat in well but the white cloth did not absorb heat well. The second design used dark cloth, foam, and felt, scoring 8 points for materials and 2 total points. It absorbed heat better but did not insulate well as the temperature dropped quickly in the shade. Overall, the first design worked better despite the white cloth not absorbing heat as it kept more heat in, showing insulation is important for a solar oven.Evelyn rojas design a solar oven
Evelyn rojas design a solar ovenHRBranham
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1) The document describes two designs for a solar oven created by students. Design 1 uses cotton balls, foam, and sand to trap heat, while Design 2 uses sand and aluminum foil.
2) The students test both designs, recording the temperature in the ovens over time when placed in sunlight. Design 1 reached a maximum temperature of 55.6°C after 25 minutes, while Design 2 only reached 31.8°C.
3) Based on the testing results, the students determine that Design 1 performed better because it was better able to retain heat using insulating materials like cotton and foam. They conclude that to improve Design 2, it would need more insulating materials to trap more heat.Presentation
- 1. What is Wrong With The Water By: Cruz Sharon Daniel And Ricky
- 2. The problem • 2.2 million people mostly children die every year from diseases associated with no safe drinking water. • Half of the world's hospital beds are filled with people suffering from water related illnesses • 6,000 children die every day from disease associated with lack of access to safe drinking water. • 80 percent of diseases in the developing world are caused by contaminated water. • Drinking water is also called potable water, and it is water of a decent enough quality to consume or use with a very low risk of getting contaminated or harmed. And people all around the would are suffering from this water diseases.
- 3. What I know about water • Tap water doesn't have diseases because we boil it to take the minerals and germs but they still have a little bit of germs but not a lot.
- 4. What does the U.S do to our water • In Mexico they don't have water fountains like us because they don't have filters and chemicals and we do that is why are water is clean and Mexico water is dirty like the other countries in the world.
- 5. How to make drinking water safer EXAMPLES • I would use a metal can to boil water because it's faster and a fire on a country or where ever I am. • I wouldn't use glass can because it doesn't boil faster than the metal and it will take a long time to boil.
- 6. CONCLUSION Water boils at 100° degrees tap water doesn't boil at 100 degrees salt water has water and salt does not boil at 100 degrees. Tap water manuals does not boil at 100 degrees clean water boils at 100° degrees. Water freezes 0° degrees and to un freeze it you have to boil Tap water doesn't boil to 100° degrees but clean water does boil to 100° degrees and water freezes to 0° degrees so it can be a liquid again.
- 7. Where did we get our information • Water treatment process |drinking water| U.S EPA • How to purify water: 8 steps ( with pictures) - wikiHow • OA guide to water purification • The facts about the global drinking water crisis | blue planet network • An education guide about drinking water
- 8. Good Bye • Cruz • Ricardo • Daniel • Sharon