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The Water Cycle

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The Water Cycle


MUSIC♫ ANNE THOMPSON: All the water on Earth today, every drop, is all the water there has ever been on the planet. Freshwater is actually millions of years old. The same water, flowing in a continuous loop- falling as rain and snow from clouds to the Earth’s surface, running in rivers, pooling in ponds, flowing from faucets, irrigating crops, traveling through plants, generating power, eventually evaporating into the air and condensing into clouds again. ANNA MICHALAK: Why is there life on Earth? The reason there is life on Earth is because Earth has this perfect water cycle. THOMPSON: The Water Cycle, so simple even small children understand the basics, yet so complex, the most advanced earth scientists, hydrologists, geologists, and biogeochemists are studying every part and process. MARTHA CONKLIN: The Water Cycle is fascinating. It’s something that’s around us all the time, and yet we don’t really understand it. THOMPSON: How to summarize what is known about the Water Cycle? With two words- flows and stores. The Water Cycle is a series of flows of water between various water stores or storages. Clouds in the atmosphere… TOM HARMON: There’s always a little bit of water in the atmosphere. We talk about relative humidity- it’s a humid day, it’s a dry day- either way, there’s water, sometimes a little, sometimes a lot. THOMPSON: There’s a lot of water in the oceans – 70% of all the water on Earth, in the ice sheets and glaciers – two-thirds of all the fresh water on Earth, in the snow packs atop mountains like the Sierra Nevada, in the Great Lakes, in rivers and streams, in reservoirs and watersheds, in wetlands, in the soil, in and on plants and trees rooted in the soil, and beneath the soil, in water tables and underground aquifers like the Ogallala-High Plains, which runs underneath parts of eight states, from South Dakota to Texas. All this storage is temporary. Water, in all its forms, is always in flux and always moving. And there’s a name for every kind of movement in the Water Cycle starting with precipitation. MICHALAK: Precipitation is the process of water falling onto the surface of the Earth. You can have precipitation in many forms- rain, snow, hail. THOMPSON: Rain is falling water in liquid form. Snow, ice, hail and sleet are falling water in solid, or frozen form. Fog and mist? Falling water in gas or vapor form. Precipitation that falls directly into the oceans becomes part of surface ocean and can be churned by wave and wind action into ocean currents. Rain and snow that falls directly on rivers and streams becomes one part of stream flow. Rain that falls onto land takes a different path to the river as does the snow and ice that falls and collects on mountaintops when temperatures warm. CONKLIN: When snow melts, some of it runs through the snowpack and goes into small streams, tributaries that feed into large rivers. THOMPSON: What about the precipitation that falls on and over land? Some is intercepted by vegetation – plants and trees. HARMON: Like you might imagine, someone in a game of football intercepting a pass, these are raindrops trying to come to the ground, and leaves on the tree intercept them before they hit the ground. THOMPSON: And the precipitation that does hit the ground? It can run off if the ground is hardscaped – covered with asphalt or concrete- or if the soil is too wet, or saturated to absorb more water, like an over soaked sponge. Otherwise, precipitation infiltrates the soil surface, percolates into the ground. HARMON: Think of it as the water percolating through your coffee grounds in the morning. Gravity continues to pull it downwards so it will move through. THOMPSON: Through the topsoil, into spaces between soil and rock particles, down to bedrock, and further, into fractures, into deep underground aquifers. Even groundwater here is moving sideways, or laterally, discharging toward a river, lake or the sea, generally the deeper the flow, the slower the flow. CONKLIN: Some of that fractured water might take a very long time, thousands to millions of years, to get out. THOMPSON: And how does water get back out into the atmosphere? It evaporates, is turned from a liquid into a gas or vapor, by the heat of the sun. MICHALAK: If you put a bit of water into a bowl and you set it outside on a sunny day, it’s going to disappear. It’s still water, it’s just in the form of a gas rather than in the form of a liquid. THOMPSON: Water evaporates from every wet surface – even from wet air. Some rain and snow evaporates into the air while falling. Water evaporates through our respiration and perspiration and from plants, through transpiration. Trans means through or across. Plant roots draw up groundwater. MICHALAK: And plants pull that water up through their stems into their leaves and then release it back out through evapotranspiration. THOMSPON: Evaporanspiration, a spelling bee worthy term for evaporation from soil and water surfaces, plus transpiration from plants. Evaporated water molecules are tiny enough to flow into the air. Mix with smoke and dirt particles in the atmosphere. Cool, condense, into visible masses of water vapor – clouds. Winds move clouds into colder air, water droplets collide and merge, grow bigger and heavier, until they are so heavy, they fall again as rain or snow, sleet or hail. Precipitation. Collection. Runoff. Interception. Infiltration. Percolation. Discharge. Transpiration. Evaporation. Condensation. The Water Cycle. ♫MUSIC♫

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100 thoughts on “The Water Cycle”

  1. ALI RASHEED says:

    You are dogs

  2. Bruno Vergara says:

    I have a test that’s why I’m studying

  3. Mia Riley says:

    why is she pronouncing precipitation wrong??? Isn’t she a scientist?

  4. Benjamin Almero says:

    I just need to do some more homework.

  5. Tony Tipton says:

    how many people are watching this in 2019 give a like if you are

  6. Asim I.I. says:

    Great..
    Also listen my song on water saving >>>> https://youtu.be/xxEULzImMnU

  7. waqas khan says:

    you have made, actually, a simple topic very comlex.hav'nt you?

  8. Alessandro DePaz says:

    you suck

  9. Ellie Sarre says:

    meeeeee no need to be meme XDD

  10. Monster GamingRB says:

    Lel

  11. Abdullah. says:

    We know this 1440 years ago!!

    ..

    In Quran. πŸ™πŸ»β€

    ΩΩŽΨ§Ω„Ω’Ψ­ΩŽΨ§Ω…ΩΩ„ΩŽΨ§Ψͺِ ΩˆΩΩ‚Ω’Ψ±Ω‹Ψ§Β [Adh-Dhaariyat : 2]

    (51:2) which carry clouds laden with water,Β *1

    *1)Β All the commentators are agreed that adh-dhariyat implies the winds that disperse and mist up the dust, and al-hamilat-i wiqran implies the winds that Iift up millions of tons of water vapours from the oceans in the form of clouds. This same commentary has been reported from Hadrat `Umar, Hadrat `Ali, Hadrat 'Abdullah bin `Abbas, Hadrat `Abdullah bin `Umar, and also from Mujahid, Said bin Jubair, Hasan Basri, Qatadah, Suddi and other scholars.

  12. splasheyyy says:

    i need a good grade πŸ™

  13. 3 Hours ago says:

    My teacher needs us to explain water cycle

  14. Poogly Googly says:

    oh no no

  15. Poogly Googly says:

    oh no no

  16. Killian Dattlio says:

    [OUTDATED]

  17. Shahida Hashim says:

    will understand the video

  18. guapisimopro says:

    hablan espaΓ±ol?

  19. Kira Jane says:

    I don’t like this video because my dumb science teacher is making us watch it for homework and write down 10 facts πŸ€¦πŸ»β€β™€οΈπŸ™„πŸ˜‘πŸ˜’

  20. Kira Jane says:

    1:46 β€œthere’s a lot of water in the ocean” wow, standing ovation

  21. ツRainxy says:

    Let’s get this to 1 thousand dislikes because homework sucks!

  22. Jrem Ababon says:

    mabe i can learn more from that topic hooray hahah it is so cool i love science and that video i starting to share it my friends

  23. Jrem Ababon says:

    i want my grades will geting higher than my classmates

  24. iCuber ! says:

    watching this for schoolwork

  25. Oop- says:

    Failed my test so I have a test for homework, this really helped and my grades have gone up so much!

  26. lucia saracho says:

    bruh i have to watch this for study πŸ™

  27. Benson Mowbray says:

    Wat is dis

  28. Jaanyl Joseph says:

    Intelligence lives in science

  29. BB Films says:

    THANKS SO MUCH!! IT HELPS YOU TEACH IT BETTER THAN MY SCIENCE TEACHER (DONT TELL HER)

    πŸ˜‚

  30. shivam Kumar says:

    Tick

  31. Archie Von Bergen says:

    It is not good just kidding

  32. Branden Stevens says:

    i,m a youtuber braden stevens i loved that i,m will watch it agin

  33. flynnisnotcool says:

    nibbbbbb libb

  34. Gianluca Vernia says:

    I have a question how come we have water shortage problems if there’s the water cycle?

  35. flynnisnotcool says:

    HUmANITies GrrrRRR

  36. flynnisnotcool says:

    HEy novs

  37. Anakin Skywalker says:

    like if you watched this with school

  38. Gail Sohns says:

    Using this for an American Heritage Girls geology badge requirement

  39. Izuku Midoriya says:

    Comment if ur in 5th grade

  40. dhruv khanpara says:

    Who is watching it in science class??

  41. Metro4ds says:

    "Theres alot of water in the ocean"

    OMG NO WAY!!!!

  42. Football Forever says:

    Anyone Muslim

  43. Austin Sturm says:

    This Video Suck soggy grandma butt crackπŸ˜ πŸ˜ πŸ˜ πŸ˜ πŸ˜‚πŸ˜‚πŸ˜‚πŸ˜πŸ˜πŸ˜

  44. ZeprofessorLetsplay 2.0 says:

    Who has a quiz tommorow or today…

  45. Sa Nie says:

    Well, very nice, but my students just understand spanish, and the best science videos come in English. Such a bummer

  46. bundydryandlime says:

    2:55 fog and mist is not in gas or vapour form. It's still liquid!

  47. Ziowar Biowar says:

    Half people here are forced to for wild class or something Ike that were we have fun for a week then have to watch this dumb thing were 80% of people our age already know.(teacher is walking around forcing us to watch)

  48. AidanStrikez says:

    Teheran lol XD thanos buns

  49. AidanStrikez says:

    πŸŒπŸ‘Œ

  50. Epic 7000 says:

    Video: so simple, even small children understand the basics
    Me knowing fucking nothing about the water cycle:

  51. Blakey Boi45 says:

    i wish i could watch super wog but im at school like if ur at school watching this

  52. Blakey Boi45 says:

    hello declan stop looking at my comments were at school dont wont to get court donty you

  53. Blakey Boi45 says:

    youre a poopy man

  54. Kara Schlegel says:

    who here is doing school work?

  55. β€’ rhodoroo β€’ says:

    Thanks for helping with my homework assignment! XD

  56. Groovy Gopnik says:

    Is it perpetuities impossible for this woman to say the word β€œsoil?” πŸ˜‚ The way she says it β€œsoya” πŸ˜‚

  57. Rayhan Afzal says:

    If This Same Water Has Been Recycled For Like Since The Start Of Earth, Wouldn't That Mean Dinosaurs Also Were In This Water?
    (thinking emoji)

  58. BRANDON LORE says:

    If we pee in our toliet water arent we technacially drinking our own pee.

  59. Min Seokmin says:

    Innova Schools?
    :v

  60. ElRodrax101 says:

    Viva Innova Schools Rodrax

  61. Kat Guillot says:

    Does Fog fall? So what do you call the fog that begins to lift? at what level do you call it a cloud?

  62. uwu uwu says:

    LIKE SI VIENES POR INNOVA SCHOOL :V (vendo pan :3 )

  63. Faustina Kalo says:

    Nice but slow down

  64. Faustina Kalo says:

    Nice but slow down

  65. Brenton Palmer says:

    wow

  66. Nathan Lawson says:

    what up

  67. Vegan Phobic says:

    The dome over the flat earth ensures we never lose any water

  68. Fenet million says:

    who's here trying not fAIL BUT IS LITRELLY FAILLING RIGHT

  69. Mateo Garcia A says:

    Wow

  70. VZ JASIELEXD MURILLO says:

    Who is doing a homework? πŸ˜‚

  71. Ethan Vetter says:

    this is pretty cringe ngl πŸ—Ώ

  72. account account says:

    That school life

  73. Its Laara says:

    Anyone here got a test and has to study? 😩

  74. John McGuire says:

    It's preposterous to pretend to know no water has entered or left the earth ever. Beyond improbable, it sounds like you've subscribed to an ancient/medieval/biblical firmament model of cosmology!

  75. Jordan Carroll says:

    I am very confused by condensation

  76. William Osmanski says:

    hey guys ik im cute but pls dont be weird

  77. nina sleeps says:

    The Water Cycle:
    -precipitation
    -collection
    -runoff
    -interception
    -infiltration
    -percolation
    -discharge
    -transpiration
    -evaporation
    -condensation

  78. A Meow Cat says:

    Who here is from a GEOGRAPHY class?

  79. Alder Eguiluz says:

    Hello Jorge

  80. Jorge Etxeberria says:

    ME voy a comer un NIΓ‘O de Cenar hoy

  81. MutantDustBunny says:

    Of course there's no mention of "primary water" but don't worry, that won't be on your test. Shhhhh! Don't let people know there's NO WATER SHORTAGE!

  82. Madison 〃ω〃 says:

    Im looking for homework lolΒ΄βˆ€`

  83. walter clements says:

    APES gang wya ?!?

  84. Animation Studios! says:

    2013: our earth is beautiful!
    2019: SKSKSKS SAVE THE TURTLES

  85. Srikar Bala says:

    bio with ms lauer

  86. Julian Fraley-Rivera says:

    This video was very boring and dry. Next time you should definitely make it more lively with a song or something just to catch the audiences attention.

  87. Peter Peseta Kofe says:

    This is boring

  88. shank steaks says:

    elizabeth rad

  89. MARK MXZ says:

    Good video XD

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  91. block game says:

    your not saying water wrong

  92. Jennifer Bowditch says:

    πŸ™‚

  93. Ajay Hillard says:

    who else is in school

  94. Christopher Santos says:

    it is dumb

  95. Lucas Pastrelli says:

    Who looked up the water cycle song first

  96. Obaid Marwat says:

    Water cycle in Hindi/Urdu
    https://youtu.be/k4VtQWDSChg

  97. Shaara Barr says:

    Who’s here because they didn’t pay attention in Science

  98. Dylan Willard says:

    If your doing this for homework like this commt

  99. Nanoo says:

    nah i aint watching this

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