After completing this investigation, students will be able to. Earths water lesson 1 how is water distributed on the earth. It is important to understand the restricted accessibility of fresh water. May 02, 2016 over 97 percent of the water resources on earth is found in the ocean and other saline water sources, thus, only about 2. Aug 14, 2017 water distribution water is a finite source. Water makes up a large portion of earth, but most of it we dont use for drinking. As the earth warms, regions that currently receive an adequate supply of rain may shift. Tsw discover what percentage of the earths surface is covered by. Extensive water distribution system is needed to deliver water to the individual consumer in the required quantity and under a satisfactory pressure.
Water, one of earths most limited resources, is recycled over and over again. In this video, dave campbell and keith hunter discuss how the earths water is distributed. This is an online quiz called earths water distribution. Earth is often called the blue planet, because of its abundance of liquid water. Visualisation of the distribution by volume of water on earth, by cmg lee. In this project, students will create models to represent water distribution on earth. Youve heard the phrase, and for water, it really is true.
Earths oceans contain 97% of the planets water, so just 3% is fresh water, water with low concentrations of salts. The origin of water on earth dates back to several million years. There is also water in the atmosphere, but this is a tiny amount. Comparison of groundwater use with total water use in the united states, 1995 total water use in bgald 40 9 4 26 2 341 209 groundwater 15 6 49 6 1 76 75. Scale, proportion, and quantity students conduct an investigation by using relative scales to describe the distribution of water on earth. Visualisation of the distribution by volume of water on earth. This lesson is designed to help students understand the distribution of water and its forms on earth. Pdf with 70 percent of the earths surface covered in water, how could we ever run out. What is the 1 major thing the graph is trying to tell you. But just how much water exists on, in, and above our planet.
This is locked up in glaciers with only a small amount on the land surfaces lakes, rivers and streams. A good distribution system should satisfy the followings. I purposefully encourage the students to independently make sense of the directions as this is an important skill to learn at the 5th grade level. Water on earth moves between the atmosphere, land, and oceans in a journey known as the hydrologic or water cycle. This entry describes the unequal distribution of freshwater resources on. Water occurs in many forms on earth, and it is naturally present in all three phases of matter. Explains the distribution of water around the world and the causes and consequences of water scarcity. Water is a naturally circulating resource that is constantly recharged. Second, the water in the mantle isnt water as h 2 o, rather it is the hydroxide oh content of a silicate mineral that isnt stable under the conditions of earths surface where water h 2 o is stable. Download a pdf of all web pages for the student materials. Distribution of water on earth activity the earth images.
Second, the water in the mantle isnt water as h 2 o, rather it is the hydroxide oh content of a silicate mineral that isnt stable under the conditions of earth s surface where water h 2 o is stable. This water distribution system is often the major investment of a municipal waterworks. For an estimated explanation of where earth s water exists, look at this. Global warming will change patterns of rainfall and water distribution. The distribution of water on the earths surface is extremely uneven. A detailed plan will be provided showing the location of the effluent irrigation system in relation to the potable water distribution system and buildings. Over 97 percent of the water resources on earth is found in the ocean and other saline water sources, thus, only about 2. Each page invites your learner to interactive with the subject to engage the information. That leaves only one percent of the earth s water available to us for our daily water supply needs.
The movement of water around earths surface is the hydrologic water cycle. In this quiz, you will be tested on freshwater, a primary resource of drinking water. Not that much actually water covers 71% of the earths surface. About 51 percent of the nations population depends on ground water for domestic uses. A storage location for water such as an ocean, glacier, pond, or even the atmosphere is known as a reservoir. Because earths water is present in all three states, it can get into a variety of environments around the planet. Search and free download all ebooks, handbook, textbook, user guide pdf files on the internet quickly and easily.
Distribution of water on earth1 free download as powerpoint presentation. Distribution of water on earth 1 free download as powerpoint presentation. The effluent irrigation system must be physically separated from any distribution systems carrying potable water. Rivers and basins are often compared not according to their static volume, but to their flow of water, or surface run off.
The leftside bar shows where the water on earth exists. Our nearest star directly impacts the water cycle by supplying the energy needed for. Distribution of water on earth oceans 1,350 x 1015 m3 97. Looked at another way, only one percent of the water on the earths surface. The total volume of water in rivers is estimated at 2,120 km. Where is earths water located and in what forms does it exist. All of the datasets that comprise the global surface water 19842018 are being made freely available using the following delivery mechanisms. Lesson the distribution of water on earth betterlesson. Distribution of water on earth1 fresh water aquifer.
Water distribution on the earth taking notes from different graphs 2. Students develop a sense of where the worlds water is located and how it moves through the earth system. The suns heat provides energy to evaporate water from earth s surface water oceans, lakes, etc. Therefore, even though the stocks of water in natural and artificial reservoirs are helpful to increase the available water. Water quality awareness in urban environments lesson 1 1 lesson overview. Upwelling the movement of nutrientrich waters from the deep ocean into shallow areas. Each tiny cube such as the one representing biological water corresponds to approximately cubic km of water, with a mass of approximately 1 trillion tonnes 200000 times that of the great pyramid of giza or 5 times that of lake kariba, arguably the heaviest manmade object. What are some other important facts the graph is telling you. That leaves only one percent of the earths water available to us for our daily water supply needs.
About 71 percent of the earth s surface is water covered, and the oceans hold about 96. Two percent of the earths water is stored as fresh water in glaciers, ice caps. Because water covers threequarters of the earths surface, it might appear that there is plenty to go around. There is a printable worksheet available for download here so you can take the quiz with pen and paper. You can see how water is distributed by viewing these bar charts. Song serotone radio slaves panorama garage remix artist matt obrien. About 71 percent of the earths surface is watercovered, and the oceans hold about 96. Most water in the earths atmosphere and crust comes from the world oceans saline seawater. Water distribution on earth where is water distributed on earth.
They use data from their investigation to provide evidence that there is a. The distribution of water on the earth s surface is extremely uneven. Looked at another way, only one percent of the water on the earth s surface. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Water in earths hydrosphere precipitation education. Introduction to water supply systems ced engineering. There is also water in the atmosphere, but this is a tiny. Salt water has different kinds of salt in it, but it mostly has sodium chloride, the same salt we add to our food. Regions that rely on snow melt may find that there is less snow and the melt comes earlier and faster in the spring, causing the water to run off and not be available through the dry.
Using data on the worlds water distribution, students calculate the percentage of water that is available to humans and examine graphics that illustrate the distribution. The movement of water around earth s surface is the hydrologic water cycle. The distribution of water on, in, and above the earth. These are the notes over fresh water, distribution of the earths waters, as well as the percentage of salt water to fresh water and the break downs of how where the fresh water is located and how much is available for human consumption, conservation methods. This website, presented by nasas global precipitation measurement gpm mission, provides students and educators with resources to learn about earths water cycle, weather and climate, and the technology and societal applications of studying them. The suns heat provides energy to evaporate water from earths surface water oceans, lakes, etc. Two percent of the earth s water is stored as fresh water in glaciers, ice caps, and snowy mountain ranges. Nov 21, 2019 water supply and distribution factsheet understanding earth ancient greece and water climatic activity 2 1 global water distribution distribution of water on the earth s distribution of water on the earth s surface 103 infreshwater availability clroom activity precipitation educationactivity 2 1 global water distributionu s water supply and distribution factsheet center forthe water cycle. If topographic conditions are ideal, gravity distribution is used.
Water falls from the atmosphere as snow, hail, or rain onto land and ocean. The middle bar shows the distribution of that three percent of all earths water that is freshwater. The middle bar shows the distribution of that three percent of. And most of that fresh water, 68 percent, is trapped in ice and. Using a spray nozzle, install a well near the home or business.
In reality, however, we have a limited amount of usable fresh water. Apr 18, 2016 this video is about earth s water distribution. Because earth s water is present in all three states, it can get into a variety of environments around the planet. They are designed to adequately satisfy the water requirement for a combination of o domestic o commercial o industrial o fire fighting purposes. Over 97 percent of the earths water is found in the oceans as salt water. Two percent of the earths water is stored as fresh water in glaciers, ice caps, and snowy mountain ranges. The water that was here billions of years ago is still here now. Most fresh water is trapped as ice in the vast glaciers and ice sheets of greenland. A graphical distribution of the locations of water on earth. Over 97 percent of the earth s water is found in the oceans as salt water. Water supply and distribution factsheet understanding earth ancient greece and water climatic activity 2 1 global water distribution distribution of water on the earth s distribution of water on the earth s surface 103 infreshwater availability clroom activity precipitation educationactivity 2 1 global water distributionu s water supply and distribution factsheet center forthe water cycle. From the first lesson with the globe toss, we know that about 70% of the earths surface is covered by water. The distribution of water on earth lesson will correlate to other interdisciplinary areas.
Chapter 8 water distribution systems distribution system is a network of pipelines that distribute water to the consumers. The water available to planet earth is the same water that has always been available and the only water that ever will be available. Distribution of water on the earths surface earth 103. This is an online quiz called earth s water distribution.
Of freshwater, 69% resides in glaciers, 30% underground, and less than 1% is located in lakes, rivers, and swamps. However, of all the water on earth, more than 99 percent of earths. Relying only on popular news blurbs, press releases etc for writing articles can beis problematic and misleading. As soon as students have all the supplies needed for the investigation, i ask the teams to begin reading and following the directions on the the distribution of water on earth investigation. Water distribution read earth science ck12 foundation. The distribution of river runoff across the earths surface is very uneven. The sun, many millions of kilometers away, provides the energy that drives the water cycle. The earth has a finite amount of water, with most of the water being found in the oceans.422 1331 839 207 1418 1429 633 290 873 473 1290 568 1601 973 821 862 37 1552 850 162 1027 1611 462 1112 1132 281 1188 717 1393 806 1382 1495 1260 1448 1026 974 330 1457 670 1338 1252 25 321