Water is the most abundant, most accessible and one of the most studied chemical compounds. The fact that it is located throughout the planet, its crucial importance to man 's survival and its ability to exist in solid, liquid and vapour phases and transform between them readily has made this liquid uppermost in the thinking of man throughout time (Gelder., 2012). The name water typically refers to the liquid state of the compound. The solid phase is known as ice and gas phase is called steam. Water’s chemical name is identified by the name of Dihydrogen monoxide (Helmenstine, 2016). Water is a chemical compound consisting of two hydrogen atoms and one oxygen atom. (What is H2O formula? Add pics). Water possesses special properties because …show more content…
It’s a natural sequence through which water passes into the atmosphere as water vapour, precipitates to earth in liquid, gas or solid form, and ultimately returns to the atmosphere through evaporation (McMillian, 2016). The hydrologic cycle begins with sun, as wit is the energy that powers this remarkable process. The suns UV rays produce heat-causing water to evaporate from ocean lakes, rivers and puddles. “Evaporate” means it turns the water from a liquid to a gas, or “vapour.” Warm air currents rising from the earth’s surface lift this water vapour up into the atmosphere. When the air currents reach the cooler layers of the atmosphere, the water vapour condenses around and clings on to fine particles in the air. This step is called condensation. When enough vapour attaches itself to tiny pieces of dust, pollen or pollutants, it forms a cloud. Clouds do not last forever. Old clouds constantly re-evaporate and new ones form, creating ever-changing patterns in the sky. As the air gets more and more moist, the droplets that form the clouds grow larger and larger. Eventually they will get so big that the swirling atmospheric winds can no longer hold them up. The droplets then fall from the sky as precipitation. Precipitation can be in the form of rain, …show more content…
People manage this water to make sure we have a safe and reliable water supply. This is called the urban water cycle. The main source of drinking water for many people around the world comes from rivers which collect water from the land around them. This land is called the catchment Help Description. Some rain in catchments also sinks into the ground and is called groundwater Help Description. This can also be used by people who build wells or drill down to reach the groundwater. Dams Help Description are built across rivers to hold water for later use. Water is pumped from dams through pipes to water filtration plants Help Description and reservoirs Help Description. From there it is pumped to people’s homes, schools and businesses in pipes called water mains. Another source of water is recycled water Help Description which is made by treating (cleaning) wastewater in a wastewater treatment plant or water recycling plant. This water can have many uses and is an important water source. The structures that store water, the pipes that move water, and the plants that clean and treat water are all part of the urban water cycle Help Description (Parramatta, 2016). Wivenhoe Dam was built on the Brisbane River, approximately 80 kilometres from Brisbane. It was designed by the Water Resources Commission and built in 1984. The dam was built for the dual purposes of
Oxides of Hydrogen Introduction: Hydrogen atoms can react with oxygen atoms forming different compounds. There are mainly two types, one is water and the other is hydrogen peroxide. Structure: A water molecule is made up of two hydrogen atoms and one oxygen atom joining together by covalent bonds. The shape of it is bent and its bond angle is of 105°. The structure is shown below.
Warragamba Dam is vital for Sydney’s water supply as it supplies the highest quality of raw water available. The Sydney Catchment Authority ensures this and it is their goal to make sure that water quality continues to meet the Australian Drinking
The critical thinking assignment for this week entails two questions, describe the hydrologic cycle and apply it to where I live, and secondly choose a landscape either glacial or desert and describe how it forms, as well as the landscape features found on it. I will use this essay to answer both questions. I will be using my hometown of Napa California to answer the first question and I have selected the Mojave Desert landscape to answer the second question.
“Round and Round the Water Cycle” by Barbara A. Bradley is a great read about teaching the water cycle to K-2 elementary school students. She talked about how the water cycle is important to teach student at a young age because it helps them have a more sophisticated understanding later on in their school. In Bradley’s article, she lays out a ten-day unit on the water cycle, including pictures, diagrams, resources, and Ms. Bey’s (the teacher who conducted the lesson) findings when doing the lesson with her students. Ms. Bey went through the four components of the water cycle in those ten days. She had her students keep a science journal and write about their findings when they discussed evaporation, condensation, precipitation, and collection. Throughout the lesson that was taught, the students where asked questions, asked their own questions, and recorded everything in their journals. The students were also introduced to new vocabulary and learned what the new vocabulary meant through books and science experiments
There are numerous stages that take place simultaneously in the hydrologic cycle and this includes evaporation. This is when the water alters from a liquid state into a gas. The damp air from the water rises into the atmosphere and when it cools, the vapor condenses and shapes into clouds. But those billows are not the only form the vapors make; it can also materialize as dew, fog and mist, which blanket the Earth, characteristically on a rainy or humid day. Evaporation takes place when water changes from a liquid state into a gaseous state, and ascents out of the pores of the earth and into the atmosphere as a vapor (“How”). While evaporation is taking place, condensation is also occurring. When the temperature in the air plunges, the clouds become heavy and as a result they relieve themselves of the extra weight, which is called precipitation. This produces rain, hail, snow and sleet, conditioned upon the temperate. As the precipitation falls, it enters the surface of the ground and percolates into the soil, which is called infiltration. The more porous the land is, the more the infiltration can take place. However, the ground cannot hold all of that water and floods. The excess rainfall, which is also called runoff that has not been absorbed makes its way into bodies of water, such as small ponds, rivers, lakes and parts of the ocean (“Summary”).
Water has three stages—liquid, gas and solid. Water on Earth can be liquid as rain, streams, or oceans. It can be a solid like hail, ice or snow. It can be a gas like vapor, steam or clouds. As described by the Department of Atmospheric Sciences (2010), the hydrologic cycle is the process of water changing from liquid to gas to solid. The energy of the sun drives the changes to water. When water is heated up, it evaporates, turning into a gas to form steam or vapor. The water vapor rises with warm air that when meets cooler air, condenses to form clouds. These clouds and water vapor can be transported around the world. Precipitation is when water falls to Earth, in warmer temperatures as liquid and in temperatures, as a solid. On Earth, precipitation can evaporate again or infiltrate the Earth to become groundwater. As ground water it can collect in oceans, rivers or on snowy mountaintops and glaciers. It can also be released back into the atmosphere via transpiration, when water evaporates off soil, trees. When water evaporates, the cycle starts again.
A Drop Around the World is a fictional book that allows readers to follow a raindrop, named Drop, on an adventure. Drop goes through all of the phases of the water cycle and also visits many interesting places and people. Drop travels to many countries and during its travels, the drop of water goes through the various stages of the water cycle. The language and advanced vocabulary make this book complex and thought-provoking. The text expands the reader’s knowledge of geography and water cycle through pictures as well. I think this book will be a good choice because the author explains the water cycle in the point of view of the raindrop. The students will get an understanding of what a cycle is and how water changes during the cycle.
Water has a great number of roles in living organisms, this is largely to do with the structure and covalent bonding in a single water molecule, and between water molecules. Around 75% of the earth is covered in water, and it is reffered to as the most important Biochemical. Its chemical symbol is: H2O In a water molecule there are two bonding pairs and two non-bonding pairs of electrons. These four pairs of electrons repel one another, forming a tetrahedral pattern.
Fresh water is naturally occurring water on the Earth 's surface in ice sheets, ice caps, glaciers, icebergs, bogs, ponds, lakes, rivers and streams, and underground as groundwater in aquifers and underground streams. Water is predicted to become scarcer by the years 2020 to 2025, 1.8 people will live in areas with water scarcity because of use, growth, and climate change. The problem is humans have shown that they are not sufficient water users which in other words means they 're wasting water. That is just one of many reasons a few other reasons as to why fresh water is a scarce resource are water footprints, pollution, and climate change. If we find a way to efficiently manage these factors we could help preserve
Each water molecule consists of one oxygen atom and two hydrogen atoms. The oxygen atom (or the apex of the water molecule) bears a slight electronegative charge while hydrogen possesses a more positive one. Because opposite charges attract, the water molecules are drawn together. When an oxygen atom is linked to a neighboring molecule's hydrogen atom, a bond called a hydrogen bond is formed. In an ice crystal the hydrogen bonds to give the shape of the crystal so that the grid of molecules surrounds relatively to large spaces. In a liquid form, water has no such spaces; so ice is less dense and will float on liquid water. If not for this, great bodies of water would freeze from the bottom up without the insulation of a top layer of ice and all life in the water would die.
The water is then used when there is a lack of supply. For example many small dams impound water in the spring, for use in the summer dry months. Storage dams also supply a water supply, or an improved habitat for fish and wildlife; they may store water for hydroelectricity as well.2 A diversion dam is a generation of a commonly constructed dam which is built to provide sufficient water pressure for pushing water into ditches, canals or other systems. These dams, which are normally shorter than storage dams are used for irrigation developments and for diversion the of water from a stream to a reservoir.
Rain forms when water vapor condenses and falls, the more it condenses the more it falls. Some raindrops are not pure and are filled with other materials, this is known as acid rain. Acid rain is a huge problem all over the world. Acid rain is mixture of chemicals, like fossil fuels and the atmosphere, it then comes down as rain, snow, hail, and sleet. The burning of fossil fuels is the main cause of acid rain. When oil and coal are burned they create sulfur dioxide, nitric oxide, and nitrogen dioxide. (" Acid Rain | US EPA") The mixture of all the chemicals and heavy winds blow the compounds across many borders.
The amount of water that is on earth at any one time remains fairly constant because the water is moving form one reservoir into another such as river to ocean or ocean to atmosphere. This cycle involves the exchange of energy causes a change in temperature. This is why when evaporation occurs, it takes energy from its surroundings and cools the environment. While condensation occurs energy is released and the surrounding environment becomes warmer. The atmosphere is a mixture of nitrogen, oxygen, and other gasses that surround the earth. The atmosphere is made up of five layers known as the troposphere, the stratosphere, the mesosphere, the thermosphere, and the exosphere. The troposphere is the lowest layer of the earth’s atmosphere; it is also where all weather on earth takes place. The stratosphere is the second layer of the atmosphere, right above the troposphere. Above the stratosphere is the mesosphere and above that is the troposphere. The uppermost region of earth’s atmosphere is the exosphere. The air in the exosphere is extremely thin and almost the same as space. One of the many reasons the earths atmosphere is important is because it blocks
Water covers about seventy one percent of Earth’s surface. Earth is the only planet to have stable bodies of liquid water on its surface which is crucial for all known life forms. Water is a substance which acts as a solvent in which organic compounds can mix, and it is the substance which is thought to be necessary to facilitate the formation of life. There are many forms of water which include ice, liquid, and gas. Because water can exist as a gas, it can be stored in the atmosphere and be delivered as precipitate. Water also helps regulate the climat...