Water
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The document discusses various topics related to water, including its chemical composition, the human body's water content, and water's role as a universal solvent. It also addresses water pollution and describes some common pollutants like crude oil, soaps, detergents, and industrial/agricultural waste that are discharged into bodies of water. Additionally, the document covers hard water and solutions for removing minerals to soften water, as well as water treatment methods like filtration and disinfection.
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Questions slide
The document discusses various questions about water usage and conservation. It states that the United States wastes the most water due to its large population. It provides examples of ways to save water, such as using less water for showers and washing machines. Most people waste water accidentally without realizing it is a limited resource. Fresh water is limited to only 1% of the total water on Earth because salt water from the oceans cannot be desalinated through boiling alone.
Recycling and pollution
Recycling helps reduce air pollution and greenhouse gas emissions which contributes to climate change. Proper recycling and reducing car, trash burning, and fireplace use can help lower air pollution. If plastic waste is not curbed, fish populations are at risk as many ingest plastic instead of food and can die with plastic in their stomachs, threatening fish in the seas.
More recycling would reduce the danger of the world dealing with e waste
E waste is increasing day to day and it harm our environment and our health too. In this presentation we have added benefits of recycling and how it can reduce danger of the world dealing with E waste
Water
Water is made up of hydrogen and oxygen molecules and covers over 70% of the Earth's surface. It exists in three states - solid, liquid, and gas - and is essential for all living things. The water cycle describes how water is constantly recycled as it evaporates from bodies of water into the air, condenses into clouds, and falls back to the Earth as precipitation. It is important to conserve our limited water resources through practices like reducing consumption and matching water levels to load sizes. Singapore has campaigned to lower daily water usage and aims to reduce consumption to 140 liters per person by 2030.
Facts of Water
Water makes up most of the Earth's surface and is essential for life. It has no odor or taste and is transparent. Most of the Earth's water is in oceans, with smaller amounts found in ice caps, lakes, rivers and underground. Humans and other living things need water to carry nutrients, remove waste, grow crops, manufacture products and regulate body temperature. The average person needs 6-8 glasses of water per day to avoid dehydration, and athletes need extra water before, during and after exercise.
Save water save life
Water is the most precious gift of nature. It has no taste, no smell and no colour. It is found everywhere and the other name of it is life. We find it in tanks, ponds, wells, rivers and springs. Almost three-fourth of the earth is water. We should conserve and save water so as to protect the water environment.
Water facts
Water exists in three states - solid, liquid, and gas. It is transparent, reflects light, and is essential for life. Fresh water comes from rivers and lakes while sea water is salty and undrinkable. Water is used for drinking, cooking, cleaning, recreation, and is part of natural cycles like evaporation and precipitation.
Save water
This document provides information about saving water and emphasizes the importance of conserving this critical resource. It notes that 71% of the Earth's surface is covered in water but only 2% is freshwater. It encourages various ways to save water such as fixing leaky faucets, collecting rinse water, and turning off taps while brushing teeth. The document stresses that water shortage causes over 3.5 million deaths annually, mostly among children. It concludes by stating that conserving water can save both the Earth and money.
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Questions slide
The document discusses various questions about water usage and conservation. It states that the United States wastes the most water due to its large population. It provides examples of ways to save water, such as using less water for showers and washing machines. Most people waste water accidentally without realizing it is a limited resource. Fresh water is limited to only 1% of the total water on Earth because salt water from the oceans cannot be desalinated through boiling alone.
Recycling and pollution
Recycling helps reduce air pollution and greenhouse gas emissions which contributes to climate change. Proper recycling and reducing car, trash burning, and fireplace use can help lower air pollution. If plastic waste is not curbed, fish populations are at risk as many ingest plastic instead of food and can die with plastic in their stomachs, threatening fish in the seas.
More recycling would reduce the danger of the world dealing with e waste
E waste is increasing day to day and it harm our environment and our health too. In this presentation we have added benefits of recycling and how it can reduce danger of the world dealing with E waste
Water
Water is made up of hydrogen and oxygen molecules and covers over 70% of the Earth's surface. It exists in three states - solid, liquid, and gas - and is essential for all living things. The water cycle describes how water is constantly recycled as it evaporates from bodies of water into the air, condenses into clouds, and falls back to the Earth as precipitation. It is important to conserve our limited water resources through practices like reducing consumption and matching water levels to load sizes. Singapore has campaigned to lower daily water usage and aims to reduce consumption to 140 liters per person by 2030.
Facts of Water
Water makes up most of the Earth's surface and is essential for life. It has no odor or taste and is transparent. Most of the Earth's water is in oceans, with smaller amounts found in ice caps, lakes, rivers and underground. Humans and other living things need water to carry nutrients, remove waste, grow crops, manufacture products and regulate body temperature. The average person needs 6-8 glasses of water per day to avoid dehydration, and athletes need extra water before, during and after exercise.
Save water save life
Water is the most precious gift of nature. It has no taste, no smell and no colour. It is found everywhere and the other name of it is life. We find it in tanks, ponds, wells, rivers and springs. Almost three-fourth of the earth is water. We should conserve and save water so as to protect the water environment.
Water facts
Water exists in three states - solid, liquid, and gas. It is transparent, reflects light, and is essential for life. Fresh water comes from rivers and lakes while sea water is salty and undrinkable. Water is used for drinking, cooking, cleaning, recreation, and is part of natural cycles like evaporation and precipitation.
Save water
This document provides information about saving water and emphasizes the importance of conserving this critical resource. It notes that 71% of the Earth's surface is covered in water but only 2% is freshwater. It encourages various ways to save water such as fixing leaky faucets, collecting rinse water, and turning off taps while brushing teeth. The document stresses that water shortage causes over 3.5 million deaths annually, mostly among children. It concludes by stating that conserving water can save both the Earth and money.
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This document discusses water, its properties, states, and importance for life. It describes the water cycle where water evaporates from oceans and lakes, rises as vapor, condenses to form clouds, and falls as precipitation to collect in bodies of water again. It emphasizes that water is a limited resource and stresses conserving it through practices like fixing leaks, turning off taps, and reusing water. A quiz at the end reviews these key points about water.
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Most of the Earth's surface consists of water, with more water than land. There are two kinds of water: salt water containing high salt levels and freshwater with less than 1% salt, which is safe for drinking. While most surface water is frozen or salty, water is unique for existing naturally as a liquid, gas, and solid.
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The document discusses the importance of protecting the environment. It states that if we don't take care of our planet, humankind will be in grave danger. It encourages taking simple measures like planting trees, properly disposing of garbage, and using alternatives to plastic to reduce pollution. The document emphasizes that a clean environment is essential for human health and survival.
WATER A LIFE GIVING LIQUID
Water is essential for agriculture, manufacturing, and human survival. Only 1% of the world's water is usable, making it a precious resource. Throughout history, polluted water supplies have caused disease outbreaks that killed thousands. Proper water management through catchments, dams, and controlling human activity helps ensure water stays safe for drinking.
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Water ppt
The human body is 70% water and plants cannot survive without it. Water is essential for life and is contained in many foods. However, water pollution from sewage, industries, ships, litter, and acid rain is increasingly threatening water sources like lakes and rivers. Various types of water pollution include nutrients, surface, groundwater, chemical, and oil pollution. Industries release harmful pollutants like asbestos, lead, mercury, oils, and petrochemicals into water. Acid rain is also very damaging to marine life and plants. If not addressed, water pollution can reduce fresh water and cause death, disease, and disruption of food chains.
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The document discusses various topics related to water including its importance, the water cycle, the ocean, currents and tides, and how humans affect water. It notes that water is essential for life but only 1% of the total water is available for human use. The water cycle involves processes like evaporation and condensation that move water from the clouds to the ocean and around the world. The ocean contains a vast amount of life but its water is salty and unsuitable for drinking. Currents and tides are caused by various natural factors and can be dangerous, while human waste is polluting the ocean and harming sea life.
Save water
Water is probably the most important resource on Earth.We need water to grow and to stay alive. In fact, we could only live for a few days without drinking water. We also need water to grow plants and care for animals, cook our food, bathe and brush our teeth, flush the toilet, and wash our clothes.
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Water
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Water pollution
The presentation topic is water pollution. The document defines water pollution as contamination of water that generally refers to adverse changes in water quality resulting from human activities. It discusses various causes and sources of water pollution including industrial waste, sewage, surface water runoff and atmospheric deposition. The effects of water pollution on organisms and ecosystems are also outlined. Methods for treating and preventing further water pollution are presented, including conserving water usage, proper disposal of chemicals and litter, and planting more vegetation to reduce runoff.
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PresentacióN Power Point Ingles
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The human body is 70% water and plants cannot survive without it. Water is essential for life and is contained in many foods. However, water pollution from sewage, industries, ships, litter, and acid rain is increasingly threatening water sources like lakes and rivers. Various types of water pollution include nutrients, surface, groundwater, chemical, and oil pollution. Industries release harmful pollutants like asbestos, lead, mercury, oils, and petrochemicals into water. Acid rain is also very damaging to marine life and plants. If not addressed, water pollution can reduce fresh water and cause death, disease, and disruption of food chains.
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The document discusses several issues related to water scarcity around the world and proposes solutions. Poor countries lack the means to access water as climate change causes lakes and rivers to dry up. Agriculture also uses large amounts of water. To address this, rich countries should help poor nations find water, and everyone must conserve water by not wasting it and preventing industrial pollution of water sources. Specific solutions proposed include developing technology to desalinate water, using water efficiently in farming and manufacturing, and practicing water conservation at home such as turning off faucets and taking showers instead of baths.
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Water is the most important resource for life on Earth. It makes up over 70% of the Earth's surface and is essential for agriculture, industry, power generation and daily human life. However, water resources are under threat due to increasing population, wasteful usage, pollution and decreasing groundwater levels. If humans were to live without water, it would turn the Earth into a dry and lifeless place. Conservation of our remaining water supplies is crucial to ensure future sustainability and survival.
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This document discusses the importance of conserving water. It notes that water is a limited resource needed by all living things. Only a small percentage of Earth's water is available for human use, with most being salty ocean water. The document outlines various ways that individuals can help save water, such as using irrigation systems efficiently, harvesting rainwater, and taking shorter showers. The overall message is that saving water starts with responsible individual actions to ensure a sustainable supply of fresh water for the future.
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This document provides 10 definitions of science, technology, and society from various authors and years. For science, definitions focus on systematic observation and formulation of laws and principles based on empirical evidence. Definitions of technology emphasize the application of knowledge and skills to solve practical problems. Definitions of society reference groups of humans organized through shared culture, institutions, relationships and behaviors.
ODEYEMI AUGUSTINE SUNKANMI M.Sc(Ed) DLHS PH.
This document contains notes from a chemistry class on the periodic table. It includes the topic outline, which covers the periodic law, blocks of elements, and families of elements. For each topic, it provides content on the key concepts and examples. It also includes evaluation questions to test understanding and an assignment for students to read about periodicity and draw a comprehensive periodic table over the weekend.
ODEYEMI AUGUSTINE SUNKANMI M.Sc(Ed) DLHS PH.
This document discusses the five main types of energy: mechanical, electromagnetic, electrical, chemical, and thermal. It provides examples and definitions of each type of energy, including how mechanical energy is transferred from a bowling ball to pins, how electrical energy powers devices through power lines, and how chemical energy stored in matchsticks is released as thermal energy when struck. Quiz questions review the energy transformations that occur in microwaves, lamps, and other systems.
ODEYEMI AUGUSTINE SUNKANMI M.Sc(Ed) DLHS PH.
This document contains the scheme of work and lesson plans for teaching chemistry to SS2 students. It covers topics on the periodic table over two weeks, including properties of elements, groups and periods. It then covers chemical reactions over one week, discussing concepts like reactants and products, and factors that affect reaction rates such as concentration, temperature, and catalysts. The lessons include content, examples, evaluations, and assignments.
Water
The document discusses various topics related to water, including its chemical composition, the human body's water content, and water pollution. Water is an oxide of hydrogen with a 2:1 hydrogen to oxygen ratio that can dissolve most substances, making it a universal solvent. The human body and plants both contain around 60% water. Water pollution occurs when harmful substances like acids, detergents, crude oils, or fertilizers are discharged into the environment in quantities that are damaging to human health. Common sources of water pollution include industrial waste, agricultural runoff, oil spills, and refuse and sewage.
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Water
- 1. Tuesday, June 23, 2015 water, pollution, solution,& solubility 1
- 2. Tuesday, June 23, 2015 water, pollution, solution,& solubility 2 WATER: This is an oxide of hydrogen which has hydrogen to oxygen ratio as 2:1.it is referred to as universal solvent because water dissolves almost all the world (i.e. solid, liquid &Gas). Oxygen Hydrogen H2O = Water =
- 3. Tuesday, June 23, 2015 water, pollution, solution,& solubility 3 We drink water everyday…
- 4. We use water everyday…We use water everyday…
- 5. Collect and recycle rinsing water to water plant The human body is over 6o percent water and it is present in equally the same amount in plants.
- 6. Wash vegetable or fruit in bowl
- 7. Tuesday, June 23, 2015 water, pollution, solution,& solubility 7
- 8. Tuesday, June 23, 2015 water, pollution, solution,& solubility 8
- 9. Tuesday, June 23, 2015 water, pollution, solution,& solubility 9
- 10. Tuesday, June 23, 2015 water, pollution, solution,& solubility 10
- 11. Tuesday, June 23, 2015 water, pollution, solution,& solubility 11
- 12. removed by boiling but by a. Addition Of Washing Soda(Na2CO3.10H2O) Na2CO3 + CaSO4 → CaCO3(aq) + Na2SO4(aq) (soluble) (insoluble) Na2CO3 + CaSO4 → CaCO3(aq) + Na2SO4(aq) soluble) (insoluble) b. Caustic Soda, (NaOH) NaOH + CaSO4 →Ca(OH)2 + Na2SO4(aq) c. ion exchange method: CaSO4+NaY→CaY + Na2SO4 (resin) (insoluble) Types of hard water Tuesday, June 23, 2015 water, pollution, solution,& solubility 12
- 13. Tuesday, June 23, 2015 water, pollution, solution,& solubility 13
- 14. Tuesday, June 23, 2015 water, pollution, solution,& solubility 14
- 15. Tuesday, June 23, 2015 water, pollution, solution,& solubility 15
- 16. Tuesday, June 23, 2015 water, pollution, solution,& solubility 16
- 17. Tuesday, June 23, 2015 water, pollution, solution,& solubility 17
- 18. Tuesday, June 23, 2015 water, pollution, solution,& solubility 18
- 19. Tuesday, June 23, 2015 water, pollution, solution,& solubility 19
- 20. Tuesday, June 23, 2015 water, pollution, solution,& solubility 20 Hard Water Soft Water Contains Minerals such as calcium and magnesium Sodium Reaction with soap Film Suds Problems Leaves deposit called “scale” None Lather formation Doesn't form lather with detergents Forms lather with detergents Removed by Permutit process, by exchange of ions
- 21. Tuesday, June 23, 2015 water, pollution, solution,& solubility 21
- 22. Tuesday, June 23, 2015 water, pollution, solution,& solubility 22
- 23. Tuesday, June 23, 2015 water, pollution, solution,& solubility 23
- 24. Tuesday, June 23, 2015 water, pollution, solution,& solubility 24 WATER FILTER
- 25. Tuesday, June 23, 2015 water, pollution, solution,& solubility 25 3.Disinfection by adding chemicals like chlorine to kill germs and bacteria, iodine and fluorine to prevent goiter and tooth decay respectively.
- 26. Tuesday, June 23, 2015 water, pollution, solution,& solubility 26 26
- 27. Tuesday, June 23, 2015 water, pollution, solution,& solubility 27 The discharge of waste substances into the environment in quantities that are harmful to human beings is known as pollution.
- 28. Tuesday, June 23, 2015 water, pollution, solution,& solubility 28
- 29. Tuesday, June 23, 2015 water, pollution, solution,& solubility 29 The materials and energy that cause pollution are called pollutants. Examples of pollutants are Acids, Soaps and Detergents, Alcohol, Crude Oils, Chemical compounds such as Lead Sulphide, fertilizers, herbicides, etc. Crude Oils Soaps and Detergents
- 30. Tuesday, June 23, 2015 water, pollution, solution,& solubility 30 (a).Crude oil spill
- 31. Tuesday, June 23, 2015 water, pollution, solution,& solubility 31 IndustrIal and agrIcultural waste
- 32. Tuesday, June 23, 2015 water, pollution, solution,& solubility 32 Refuge and sewage
- 33. Thank You !