Water - Liquid Awesome: Crash Course Biology #2

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  • เผยแพร่เมื่อ 10 ธ.ค. 2024

ความคิดเห็น • 3.8K

  • @nikeraelynn
    @nikeraelynn 8 ปีที่แล้ว +3162

    to summarize this video :
    H2O is a covalent bond
    hydrogen bonds stick together
    hydrogen bonds are weak
    cohesion is the attraction between two like things
    water has the highest cohesion of any non-metallic liquid
    adhesion is the act of water spreading out
    adhesion is the attraction between two unlike things
    capillary action is water defying gravity
    water is a polar molecule
    water is a solvent (the greatest)

    • @nikeraelynn
      @nikeraelynn 8 ปีที่แล้ว +140

      you are all welcome in advance :)

    • @SahilShah-zi2ow
      @SahilShah-zi2ow 8 ปีที่แล้ว +23

      yep ty

    • @mraphaelmedina7347
      @mraphaelmedina7347 7 ปีที่แล้ว +29

      Beauty By Nike Hydrogen bonds are actually the strongest bonds there are. The lesser are London Dispersion and Dipole Dipole.

    • @taqdeesrehman9812
      @taqdeesrehman9812 7 ปีที่แล้ว +20

      the strongest of intermolecular forces. Yep!

    • @ERprepper
      @ERprepper 7 ปีที่แล้ว +19

      hydrogen bonds are weak? Did you watch the video or even read the text book lol

  • @amberembers8284
    @amberembers8284 5 ปีที่แล้ว +980

    A summary!
    Video Two: Water
     H2O uses a covalent bond: each hydrogen shares an electron with oxygen. It is thus a polar molecule.
     All water molecules are attracted to each other due to this polarity - these are hydrogen bonds (between the positive and negative poles of different molecules)
     Hydrogen bonds in water results in high cohesion, and thus high surface tension.
     Cohesion is the attraction between two like things (e.g. two water molecules).
     Water has the highest cohesion of any non-metallic liquid.
     Adhesion is the attraction between two unlike things (e.g. water and glass).
     Capillary action is water defying gravity.
     Water is the greatest solvents (due to its polarity).
     Hydrophilic molecules are polar - their polarity is stronger than the cohesive forces of water.
     Hydrophobic molecules cannot break the cohesive forces of water because they are non-polar.
     Solid water is less dense than liquid water due to hydrogen bonds forming crystalline structures that space molecules apart more easily (when frozen).
     Water has a very high heat capacity - it is good at holding on to heat, thus oceans regulate climate and temperature of planets.

  • @Vict0r1984
    @Vict0r1984 9 ปีที่แล้ว +611

    I'm an accounting student, but I had a horrible chemistry teacher in high school and I'm taking this courses solely to have a better understanding of the world around me, and all I wanted to say was that they've been really helpful in making me understand (with a little extra reasearch) all the basics of chemistry! Thank you crashcourse!

  • @damnage97
    @damnage97 11 ปีที่แล้ว +890

    "It can't penetrate and come into it" Hank likes his biology hardcore.

    • @9dash
      @9dash 4 ปีที่แล้ว +7

      Cum*

  • @guillaumeesce8113
    @guillaumeesce8113 8 ปีที่แล้ว +2955

    "So around 32 degrees Fahrenheit... or 0 degree Celsius if you're a scientist or from a part of the world where things make sense" I'm dying here

    • @MrJamieHartnett
      @MrJamieHartnett 8 ปีที่แล้ว +94

      Shouldn't it be 273.15 Kelvin "if you're a scientist"? :P

    • @wowowo_wowowow
      @wowowo_wowowow 8 ปีที่แล้ว +50

      I guess, but scientists use typically use both.

    • @btsismybias497
      @btsismybias497 8 ปีที่แล้ว +6

      Guillaume ESCE lol I use celsius so I make sense not lol

    • @kyliep.4858
      @kyliep.4858 7 ปีที่แล้ว +3

      +

    • @deobizen2381
      @deobizen2381 7 ปีที่แล้ว +1

      nice kookie pic!

  • @RyGuyMemes
    @RyGuyMemes 8 ปีที่แล้ว +205

    "It can't penetrate and come into it :) " I like how he has a huge smirk on his face when he said that pun.

  • @ptrocks99
    @ptrocks99 9 ปีที่แล้ว +2580

    "It can't penetrate and come into it"-Hank

    • @amymorris7199
      @amymorris7199 9 ปีที่แล้ว +305

      Patricia Kamara haha phew i wasnt the only one to laugh at that. Did you SEE his smile as he said it xD

    • @dhchaser2813
      @dhchaser2813 9 ปีที่แล้ว +258

      It was the smirk on his face that got me :')

    • @lankshearmedia8487
      @lankshearmedia8487 9 ปีที่แล้ว +30

      DH Chaser funniest thing ever ahaha

    • @ashleymorecraft1683
      @ashleymorecraft1683 9 ปีที่แล้ว +46

      When he said that i got SOOOO uncomfortable 😐

    • @cindybeltran8206
      @cindybeltran8206 9 ปีที่แล้ว +61

      +Ashley Morecraft It was pretty funny. Lighten up!! 😆

  • @rodolfobeguiristain
    @rodolfobeguiristain 8 ปีที่แล้ว +917

    Wow there used to be allot more sex jokes in the old crashcourse lol

  • @coffeeandtear4945
    @coffeeandtear4945 9 ปีที่แล้ว +614

    "This is what causes some bugs, I think one lizard, and also one Jesus to be able to walk on water." Hank how the hell were you able to say that with a straight face? 😂😂😂😂

    • @Kaprikun
      @Kaprikun 5 ปีที่แล้ว +1

      Colleen McMonagle lmao 😂🤦🏻‍♀️

    • @human9688
      @human9688 5 ปีที่แล้ว +6

      Because he's a science guy 😂😂

    • @MusicSounds
      @MusicSounds 5 ปีที่แล้ว +2

      Biology outtakes lmao

    • @CC-fh6lk
      @CC-fh6lk 4 ปีที่แล้ว +1

      1 Jesus took me OUTTTTT!

    • @racheline_nya
      @racheline_nya 4 ปีที่แล้ว +2

      i don't think you'd like the answer to that

  • @GideonGleeful95
    @GideonGleeful95 11 ปีที่แล้ว +315

    I think we all know why Hank smiled when he said "it can't penetrate and come into it."

  • @KalvinGarrah
    @KalvinGarrah 10 ปีที่แล้ว +1303

    "XD you're gonna do so good on that test you either do or don't have coming up"
    for me that's the bio midterm tommorow

    • @localboi808state
      @localboi808state 10 ปีที่แล้ว +25

      My teacher straight up told us to go here for our test tomorrow.

    • @KalvinGarrah
      @KalvinGarrah 10 ปีที่แล้ว +6

      localboi808state really? XD I had my midterm, it was sooo hard

    • @localboi808state
      @localboi808state 10 ปีที่แล้ว +11

      kayleighplays Lets all hope the scores from ours tests shall be good.

    • @Just-Darcy
      @Just-Darcy 10 ปีที่แล้ว +2

      SAME.

    • @molly19kate28
      @molly19kate28 6 ปีที่แล้ว +5

      It’s my AP bio test tm😁

  • @heavybrettal3467
    @heavybrettal3467 7 ปีที่แล้ว +33

    I gotta say how amazing this channel is. I hate sitting at my desk and listening to my professor's "simplified" lectures and instead I usually watch TH-cam videos with an unusually high amount of jump cuts. However, it is because of these jump cuts and how fast paced the teaching process is, is how I can enjoy learning about Biology WAY more than with my other lectures.

  • @withitgoesasmile
    @withitgoesasmile 11 ปีที่แล้ว +31

    Do you know what makes these videos so useful, fun and interesting? It's the fact that Hank (and John on the ones he does) really cares about what he's talking about, which means he actually WANTS to teach it to you, as opposed to just has to because it's his job.

  • @bishamontenrozy5241
    @bishamontenrozy5241 8 ปีที่แล้ว +228

    "allows some bugs, one lizard, and also one jesus to walk on water" XD
    savage af

  • @claudekennedy7855
    @claudekennedy7855 10 ปีที่แล้ว +83

    OH MY GOD! I WANT TO SAY THANK YOU TO HANK GREEN AND EVERYBODY ELSE WHO HELPS MAKE THIS PRODUCTION!!! IT HELPS ME STUDY SO MUCH!!! (btw im just an average student taking a bio class with the dire need to pass)

  • @ryan.sullivan2002
    @ryan.sullivan2002 8 ปีที่แล้ว +293

    hank i hope you know that you are being taught in my class

    • @queenaunt4531
      @queenaunt4531 8 ปีที่แล้ว +10

      same here my science teacher uses this (thats acualy how I found this)

    • @obeyex3l917
      @obeyex3l917 8 ปีที่แล้ว +1

      same lol

    • @dannyparrott3561
      @dannyparrott3561 8 ปีที่แล้ว

      Same

    • @pixel-st2mj
      @pixel-st2mj 8 ปีที่แล้ว +1

      my science teacher used to use this.... this is what im using to learn to skip a grade lol

    • @marioplaz
      @marioplaz 7 ปีที่แล้ว +17

      Does your teacher skip over the part where Hank describes hydrophobic molecules as ones that cannot PENETRATE the hydrogen bond and COME inside?

  • @chadwilliams9413
    @chadwilliams9413 9 ปีที่แล้ว +624

    i was going to show this to my class....then 5:22

    • @susannacruser2044
      @susannacruser2044 9 ปีที่แล้ว +54

      +Chad Williams Ha! My A&P prof just recommended it. I don't know if he caught that part.

    • @MadelineLiao
      @MadelineLiao 9 ปีที่แล้ว +46

      My AP Bio teacher played it on the projected in class

    • @StarBoundAngel
      @StarBoundAngel 9 ปีที่แล้ว +21

      +Chad Williams My AP Bio teacher recommended this guy LOL

    • @smooooth_
      @smooooth_ 9 ปีที่แล้ว +47

      It'll give em a good laugh no biggie

    • @jala2765
      @jala2765 9 ปีที่แล้ว +14

      +Chad Williams I was actually surprised that my Science teacher recommended it...Hank actually is an amazing teacher tho

  • @Ureyeuh
    @Ureyeuh 8 ปีที่แล้ว +52

    I credit Crash Course with my success in BIO105. When you cover 2 chapters a week and you're taking 15 credit hours/4 classes total, it's pretty much hilariously impossible to actually grasp the material as you progress and REALLY understand it.

    • @Boomtowndogs
      @Boomtowndogs 8 ปีที่แล้ว +4

      18 credits, 5 classes 2 labs as a freshman and yeah i agree

  • @evelboy1123
    @evelboy1123 2 ปีที่แล้ว +13

    This is a very helpful course, what makes it even better is it is easy to access unlike other biology courses

  • @dj123uknowme
    @dj123uknowme 9 ปีที่แล้ว +108

    My teacher showed us this vid in Bio, and I couldn't hear anything else in the rest of the video over the sound of immature guys laughing about the "penetrates and comes into" line. So, I'm here to watch the rest of the video.

  • @peacefulinvasion
    @peacefulinvasion 5 ปีที่แล้ว +17

    When the vast majority of people are here because of a test, and you're literally just watching this because they replaced all of your documentaries with reality shows on the discovery channel.

  • @The_Reductionist
    @The_Reductionist 9 ปีที่แล้ว +136

    57 minutes until a level biology exam and here i am watching youtube videos-revising...

    • @malakangel2031
      @malakangel2031 9 ปีที่แล้ว +1

      how did they go?
      I'm in year 12 and everyone is stressing me out by saying a levels are much harder than gcse

    • @The_Reductionist
      @The_Reductionist 9 ปีที่แล้ว

      +Malak Angel erm, coming from someone who got 4A*'s, 2A's and 4Bs at GCSE, I found a levels really hard. the thing is, I though I knew the content and was quite confident until I actually sat the exams. in the end I got B-physics, CCC-chem/bio/mat. but hopefully I can push those up with A2's. only way to get As at a level is to revise hard from day 1.

    • @malakangel2031
      @malakangel2031 9 ปีที่แล้ว

      Boby Gandhi​ We can't push our grades up that way anymore because we will have to do all A2 in year 13. So i guess i will have to work hard.
      My gcse results were 5A* 1A and 3B so very similar to yours

    • @The_Reductionist
      @The_Reductionist 9 ปีที่แล้ว

      Malak Angel ouch, you have it even harder then. good luck.

    • @malakangel2031
      @malakangel2031 9 ปีที่แล้ว

      Boby Gandhi Thanks. Good luck for your A2.

  • @hazzajaafproductions2155
    @hazzajaafproductions2155 7 ปีที่แล้ว +3

    I'm doing Biology, Chemistry and Physics next year and the year after. I've started to prepare myself by watching the crash course videos for them and take notes to get ahead. they are really helpful. Thank you :)

  • @ajlehman1783
    @ajlehman1783 8 ปีที่แล้ว +93

    I'm a premed college student and these videos are the only reason I'm going to survive college

    • @attilathechump9458
      @attilathechump9458 5 ปีที่แล้ว +6

      I'm a medical school professor and I play these videos in class.

    • @6slade
      @6slade 5 ปีที่แล้ว +6

      @@attilathechump9458 I'm going into my biology undergrad as pre-med next fall and this is surely a great way to review the most important things and, err, break the ice of chemistry, pun intended. Only upwards to cells, organelles, and systems now.

    • @lydia6613
      @lydia6613 4 ปีที่แล้ว +2

      I'm a sixth grader interested in biology

    • @thatweirdguywhostalkspeopl1908
      @thatweirdguywhostalkspeopl1908 4 ปีที่แล้ว

      I’m a teen and in a college program which needs me to take a test which I haven’t studied for so now I’m watching this to get a shot at getting an A

    • @SScott-cy3fy
      @SScott-cy3fy 4 ปีที่แล้ว +1

      RandomRBLXAvs you could have just said AP bio😭

  • @jakepensola2752
    @jakepensola2752 8 ปีที่แล้ว +46

    5:20 he was trying so hard to keep a straight face haha

  • @claireholcomb9325
    @claireholcomb9325 8 ปีที่แล้ว +29

    I have an AP exam tomorrow morning and these videos are probably going to be the only reason I pass. I'll be up until about 11:30.

    • @look4fools
      @look4fools 8 ปีที่แล้ว +1

      Same...

    • @tobycooke7285
      @tobycooke7285 8 ปีที่แล้ว +1

      +ClaireBear or Mama Claire Hmm... why does this sound familiar?

    • @claireholcomb9325
      @claireholcomb9325 8 ปีที่แล้ว +1

      mkjahnke It went okay, I guess. The exam was at 8, I went to bed at 11:30 lol.

    • @123nadeemuu
      @123nadeemuu 8 ปีที่แล้ว +1

      Did you pass?

    • @look4fools
      @look4fools 8 ปีที่แล้ว +2

      Lili Rochefort I did and I am sooooo happy :D

  • @genesisesponda5067
    @genesisesponda5067 7 ปีที่แล้ว +2

    I can't emphasize enough how helpful these videos are helping me review. My AP Bio test is on Monday, and these videos are my security blanket right now. Thank you SO MUCH, Mr. Hank Green!

  • @ryanjames1859
    @ryanjames1859 9 ปีที่แล้ว +9

    I'm a sophomore in highschool and I am reviewing all of this biology course (I found it through my biology teacher) to refresh myself from summer! I'm going into AP Chemistry and all of these videos help me out for all my past courses, and future courses! Thanks!!

  • @susanoshan4098
    @susanoshan4098 9 ปีที่แล้ว +12

    I love this man. He has saved my biology grade

  • @alondrie4366
    @alondrie4366 2 ปีที่แล้ว +5

    5:22 JAJAJA That joke was hidden very well . I love this videos and hank!

  • @filipinordabest
    @filipinordabest 9 ปีที่แล้ว +169

    7.8/10 Too much water- IGN

    • @se4949
      @se4949 9 ปีที่แล้ว +1

      filipinordabest Dont get the ign refrence to water other than the fact that they are terrible reviewers.

    • @nikhilsridharan5523
      @nikhilsridharan5523 9 ปีที่แล้ว +10

      ***** It's the score and reason they gave ORAS when they reviewed it.

    • @SkillShow101
      @SkillShow101 9 ปีที่แล้ว

      +Nikhil Sridharan nf

    • @allecramtdimhcs1938
      @allecramtdimhcs1938 6 ปีที่แล้ว

      Seriously? They gave ORAS 7.8 out of 10?

  • @johnvaeron9029
    @johnvaeron9029 ปีที่แล้ว +6

    Thank you Hank Green. I have gotten so much smarter due to this video. I really appreciate the scientific contributions that you have made to our society.

  • @roehend8947
    @roehend8947 7 ปีที่แล้ว +8

    I'm so happy when I my Bio teacher uses your video to teach us the subject matter. I know your videos are entertaining while being informative, so I never leave a video being more confused then I was at the beginning if I had any questions. I absolutely love Crash Course

  • @sarahmartinez4057
    @sarahmartinez4057 8 ปีที่แล้ว +20

    when you have ib biology test Tuesday and are trying to get a head start on actually understanding and studying what the heck ur supposed to know :') *softly cries bc our teacher was literally GONE THE WHOLE WEEK but we still haVE TO TAKE THE TEST*

    • @niyahtwins
      @niyahtwins 8 ปีที่แล้ว +1

      Someone who understands

    • @katelynfe
      @katelynfe 8 ปีที่แล้ว

      Sarah Martinez at least your not taking IB physics.

  • @jinny9621
    @jinny9621 9 ปีที่แล้ว +20

    I'm literally laughing at myself because hank made it so easy to understand the topics that i read a day or two ago and did not understand at all

  • @theairishpentason5980
    @theairishpentason5980 9 ปีที่แล้ว +1

    dear hank green, you are a savior!! i've been struggling with my biology subject and my friend introduced this videos. i tried to watch it and taddaaahhh!!! i feel like im a genius right now for knowing these stuff. hahahahaha. as much as i like your brother, ( im a john green fan. i've read most of his books and i cried for not having watched paper towns showing in our country) i really think you'll be a great teacher in my class. lol. thanksss. great help for my exams

  • @doctorfuntimes5006
    @doctorfuntimes5006 10 ปีที่แล้ว +8

    I think he does a really great job at explaining the info...hell lot better than some teachers....nice work!

  • @calebkierum6871
    @calebkierum6871 9 ปีที่แล้ว +9

    Really great video!
    I have to wonder how exactly they dealt with the refraction of the water glass considering the first shot was done in green-screen. They handled it really well!

  • @kyliesmith2004
    @kyliesmith2004 6 ปีที่แล้ว

    "You're going to do so well on that test you either do or don't have coming up." Thanks. I really needed that. I've been studying this material for days, the test is tomorrow, and my brain just decided that everything makes sense tonight. wow.

  • @MohammedAbdulreda
    @MohammedAbdulreda 10 ปีที่แล้ว +10

    I do not know what to say its fantastic course and i m thinking of translating it to Arabic
    thank you hank for every thing

    • @chrisgriffin9164
      @chrisgriffin9164 10 ปีที่แล้ว

      you should change it to Arabic,, it is very important, for many reasons that people don't know,, with haarp and our bodies being mainly more water,, the IRFD chip, etc etc etc, their are many young people that need this for what ever their goals are for a better and saver future for humans and the planet, so please do Mohammed Abdul reda,, and maybe even the other clips too,.

  • @JamesJones-fk9id
    @JamesJones-fk9id 4 ปีที่แล้ว +8

    "which is why we put hot water bottles in our bed and cuddle with them when we're lonely" *smiles sadly* what an epic mood

  • @lolaponce5904
    @lolaponce5904 4 ปีที่แล้ว +1

    Hank... I love the realistic words you use when describing something that would otherwise have gone over my head ! You have made me a lover of things that were once boring but interesting but hard to grasp but simple in learning it. Thank you

  • @Uthefos
    @Uthefos 11 ปีที่แล้ว +4

    11:10 Test, what test, it's not like my final is tomorrow so I have to watch the first like 25 episodes right now...hehehe.

  • @grNati94
    @grNati94 10 ปีที่แล้ว +9

    Lol seven months ago when I was in high school I watched this video and now that I am in college! Crash course it is always helpful!

  • @ShadyDoorags
    @ShadyDoorags 9 ปีที่แล้ว +1

    I must thank you for these. Retaking biology and it still isn't sinking in because I'm bad at memorizing facts. These videos are really helping.

  • @andrewengleka4917
    @andrewengleka4917 7 ปีที่แล้ว +8

    9:28 "Cuddle with them when we're lonely... HEH," Hank is hilarious.

  • @Coh485
    @Coh485 10 ปีที่แล้ว +32

    Creads to my science teacher for showing us this video in science class

    • @atomictea21
      @atomictea21 10 ปีที่แล้ว

      Me too she had us watch this for hw

  • @bidishamukherjee3936
    @bidishamukherjee3936 7 ปีที่แล้ว +1

    i love hank green.....because of his explanation and conveying things in a humorous and jovial way to make us understand topics and chapters better.....!!!!!

  • @LordYvain
    @LordYvain 2 ปีที่แล้ว +4

    5:19 he knew what he was doing.

  • @merline83
    @merline83 8 ปีที่แล้ว +155

    When you have an AP bio unit test 😭

    • @justinsimon154
      @justinsimon154 8 ปีที่แล้ว +1

      Merline Checo same girl

    • @noemigomez801
      @noemigomez801 8 ปีที่แล้ว +1

      Merline Checo this is meeeee

    • @PFAlt
      @PFAlt 8 ปีที่แล้ว

      still in the first unit. not sure what textbook you guys use, but there only about 6 units across 40 chapters, and we're on chapter 6. no tests yet, only pop quizzes, which is better or worse than a test the way you look at it.

    • @backapple6113
      @backapple6113 7 ปีที่แล้ว +1

      Lol I need this because I want intelagange or whatever

    • @wheres_the_butter01
      @wheres_the_butter01 7 ปีที่แล้ว

      same

  • @SassyEwok
    @SassyEwok 10 ปีที่แล้ว +2

    This entire channel just made me so happy.

  • @caihui5697
    @caihui5697 8 ปีที่แล้ว +1879

    LMAO ONE JESUS

    • @rosycozyposey
      @rosycozyposey 8 ปีที่แล้ว +28

      Ikr!!!!!!!!!! Me too!!!!!!! Hank should be a comedian

    • @certaindeathawaits
      @certaindeathawaits 8 ปีที่แล้ว +21

      I was dieing at the Jesus part

    • @kaylawilliams2152
      @kaylawilliams2152 8 ปีที่แล้ว +17

      Same, and the cum part kind of killed me...

    • @certaindeathawaits
      @certaindeathawaits 8 ปีที่แล้ว +2

      This is why I'm a zombie

    • @Dan-cg1te
      @Dan-cg1te 8 ปีที่แล้ว +10

      well the 1 lizard he was talking about is called the jesus lizarrd

  • @melissamauk3530
    @melissamauk3530 8 ปีที่แล้ว +52

    one lizard and one Jesus

  • @comitfam
    @comitfam 9 ปีที่แล้ว

    THANK YOU SO MUCH OMG My teacher isn't a very good teacher and I NEED THIS to survive the course. I love you guys

  • @55Selenafan
    @55Selenafan 11 ปีที่แล้ว +45

    Jesus...i have died...I LOVE YOU HANK!!! XD

    • @55Selenafan
      @55Selenafan 11 ปีที่แล้ว

      YES HE IS AWESOME! *****

    • @55Selenafan
      @55Selenafan 11 ปีที่แล้ว

      XD

    • @55Selenafan
      @55Selenafan 11 ปีที่แล้ว

      wut? XD

    • @55Selenafan
      @55Selenafan 11 ปีที่แล้ว

      lol okay den XD

    • @chrisgriffin9164
      @chrisgriffin9164 10 ปีที่แล้ว +1

      Diya the DemiShadowWiz I love Hank too, he is amazing isn't he,, nobody will be falling asleep in his class,, another good young speaker is bio man,, he talks of planet botany,, but Hank is some one special, , very special. good girl diya you have wise taste,

  • @coreydhughes
    @coreydhughes 10 ปีที่แล้ว +29

    3:20 "...and one Jesus, to walk on water..." LMAO

  • @melissaissleeping
    @melissaissleeping 10 ปีที่แล้ว +1

    I read my long and dry (get it?) textbook chapter last night and barely felt comfortable with the information. I watched this video today and am now an expert!!! : )

  • @potatomasher2187
    @potatomasher2187 10 ปีที่แล้ว +79

    5:22 - You're welcome.

    • @jadeclare2288
      @jadeclare2288 9 ปีที่แล้ว +9

      Also, turn on subtitles just before this point.

    • @potatomasher2187
      @potatomasher2187 9 ปีที่แล้ว +16

      Jade McLaren [Seriously...?]

    • @robertmoyse
      @robertmoyse 9 ปีที่แล้ว +1

      Jade McLaren haha wow

    • @Studio-7V
      @Studio-7V 9 ปีที่แล้ว +5

      Potato Masher dem sex jokes tho

    • @robertmoyse
      @robertmoyse 9 ปีที่แล้ว +8

      Nice to see youtube doing their best to make subtitles very accurate

  • @rockinstrawberries
    @rockinstrawberries 10 ปีที่แล้ว +7

    "can't penetrate and come into it" OMG, Hank's face when he was saying that.

  • @dianecha6709
    @dianecha6709 7 ปีที่แล้ว +1

    I am so grateful I found crash course!! I am in esthetics school and it makes learning anatomy and chemistry easy and fun! Thank you so much for these videos and keep up the good work :)

  • @isaiahpena8813
    @isaiahpena8813 8 ปีที่แล้ว +45

    That face at 9:35. TOO FUNNY!!!!!!!!!!!!!!!

    • @jackharlor1658
      @jackharlor1658 5 ปีที่แล้ว +2

      he loves to cuddle with his hot water bottle when he is lonely.

  • @daedra40
    @daedra40 8 ปีที่แล้ว +6

    4 years later - I have a test with this coming out tomorrow :3

  • @tanisharoy9177
    @tanisharoy9177 8 ปีที่แล้ว +1

    I love how I learn more from a non-profit TH-cam Channel than I do in my government funded Biology Honors class......thanks Crash Course!

    • @sexyscientist
      @sexyscientist 8 ปีที่แล้ว +1

      _Going to crack thanks Obama joke but realised the current situation. Cries. Leaves._

  • @yusrarahman2635
    @yusrarahman2635 8 ปีที่แล้ว +568

    Who else is jealous of the woman he's married too.

    • @tamimiemran9705
      @tamimiemran9705 8 ปีที่แล้ว +28

      ...judging by your name i totally understand why you would comment something like that lol
      where exactly do you live

    • @SidneyIam
      @SidneyIam 8 ปีที่แล้ว +6

      Me! *sigh*

    • @dariaslipchenko3027
      @dariaslipchenko3027 8 ปีที่แล้ว +9

      why would you be jealous??

    • @tamimiemran9705
      @tamimiemran9705 8 ปีที่แล้ว +21

      Daria Slipchenko shes an arab she has to marry whom ever her parents tell her to

    • @mehchaaa
      @mehchaaa 8 ปีที่แล้ว +219

      tamimi mi Um that's an extreme generalization. You don't know this person or anything about them. Please stop generalizing people.

  • @yourfriendsabri261
    @yourfriendsabri261 4 ปีที่แล้ว +20

    Me:*spending all my time on roblox*
    My dad:you should do some more academic work.
    Me:fineee i will see one of those biology courses on yt.
    Me:finds this series,and slowly starting to love it also watching all of this guy s vids.
    Me:realises these vids are for ppl in college and i am legit ten years old.

  • @neelabneel4712
    @neelabneel4712 8 ปีที่แล้ว +2

    i just love ur teaching style.. u have a high conveying power.. thank u sir..

  • @mellowchameleon9952
    @mellowchameleon9952 8 ปีที่แล้ว +6

    "It can't penetrate it and come inside it" I literally dropped my spoon into my bowl, looked out the window, and sighed"

    • @mellowchameleon9952
      @mellowchameleon9952 7 ปีที่แล้ว

      i know he meant to say it like that, thats why i sighed lol

  • @mewtrino
    @mewtrino 10 ปีที่แล้ว +60

    "Penetrates and comes into it" - Hank

    • @cortster12
      @cortster12 10 ปีที่แล้ว +12

      The fact that he had a massive grin saying that was priceless.

    • @strappinggermanlad
      @strappinggermanlad 9 ปีที่แล้ว +4

      There is even a note by the editor of the closed captions saying "Seriously...?" right after that part :D

    • @kraakenhex8459
      @kraakenhex8459 9 ปีที่แล้ว +1

      This is my favorite episode for this line alone.

    • @champion2698
      @champion2698 6 ปีที่แล้ว

      cums*

    • @pitakchonsuriyong5842
      @pitakchonsuriyong5842 6 ปีที่แล้ว

      I don't get it

  • @THEKHANSISTERS
    @THEKHANSISTERS 9 ปีที่แล้ว

    True story, it was the day of my first biology midterm for college and I was freaking out because I didn't study AT ALL for this test because I was focused so much on chemistry. All I knew was that my test was up to the chapter of Photosynthesis. My exam was at 6pm and I studied 3 hours before watching these crashcourse videos again and again trying to keep the facts in my head. I ended up passing the exam with good grades.
    Thnx Crashcourse and Hank!!!!!!!

  • @Thurgor_Supreme
    @Thurgor_Supreme 11 ปีที่แล้ว +5

    I should get my kid cousin onto this CrashCourse stuff before he gets any further along into middle school. I wish I had these when I was his age.

    • @johnb1391
      @johnb1391 11 ปีที่แล้ว

      Don't we all!

  • @9heytheredelilah9
    @9heytheredelilah9 10 ปีที่แล้ว +4

    CrashCourse has taught me more about Biology in eleven minutes than my Bio teacher did during three one-hour class periods. Cramming for my test :D

  • @cchappymom402
    @cchappymom402 7 ปีที่แล้ว

    Using these videos for my two girls (8th and 9th grade) who are homeschooled! They will be taking AP Bio this fall, and this has been a great and entertaining introduction! We'll be perusing the other video topics as well. Thank you!!!

  • @earlflex3988
    @earlflex3988 2 ปีที่แล้ว +5

    Very good video,
    Ive got one question: Wouldnt the sealevel sink, if solid water was deser than liquid water?

  • @CarlosPlummer
    @CarlosPlummer 9 ปีที่แล้ว +18

    5:21 I DIED OMG WHYYY DID HE SMIRK

  • @ashkansnake
    @ashkansnake 5 ปีที่แล้ว +2

    Notes:
    Connection between water and life
    Water molecules have high cohesion (attraction between the polar particles), leading to high surface tension. You can see this when drops on a leaf sticking to each other.
    Adhesion, opposite of cohesion, leads to spreading out instead of beading up
    Capillary action: ability to defy gravity by adhesive forces of a platform (like a straw) and cohesive forces of other water molecules to them. This is balanced by pressure and gravity.
    Water is a great solvent (many things can dissolve in it)
    Hydrophilic like salt: polars that dissolve in water, have stronger polarity than water's cohesion
    Hydrophobic like oil
    Ice has lower density than liquid water and floats (counter to how other elements behave). Because at 0 deg C, crystal structures with even spacing between them take more space. This allows life above and beneath the ice (as oppose to frozen depths and rising waters)
    Water has high heat capacity (how much heat for how long could be soaked and stored by a material), good at holding heat. That makes heating up and cooling down oceans difficult, so they can regulate the temperature. This is how sweating cools your body.

  • @saba.kamikaze
    @saba.kamikaze 9 ปีที่แล้ว +5

    This video was funny and educational!I'm going to ace this test!Thanks

  • @IcarusIsCalling
    @IcarusIsCalling 4 ปีที่แล้ว +4

    5:22 Haha, this dude knew what he was saying. Look at the grin right when the film cuts.

  • @Safa-mx8gd
    @Safa-mx8gd 4 ปีที่แล้ว +2

    when you suck at biology and so you watch crash course videos and then this comes up:
    "you are going to do so well on that test that you do or font have coming up.."
    me: IT'S A SIGN OF SUCCESS YALL!

  • @YourDestinyRecordings
    @YourDestinyRecordings 8 ปีที่แล้ว +3

    if all teachers were like this.... ahhhhhhhh..... life would be lovely

  • @AlexandraJjjk
    @AlexandraJjjk 8 ปีที่แล้ว +52

    ANYONE else prepping for the AP Bio exam monday?

  • @afroturkk
    @afroturkk 9 ปีที่แล้ว +1

    This guys amazing, actually makes me enjoy my A levels, wish i'd discovered this earlier

  • @TheSoopaSoup
    @TheSoopaSoup 11 ปีที่แล้ว +8

    I had to pause the video at the Jesus on water joke because I was laughing too hard!

  • @katpricot
    @katpricot 8 ปีที่แล้ว +24

    "And also one Jesus" Hank is hilarious 😂 😂

  • @laurenrivera2384
    @laurenrivera2384 7 ปีที่แล้ว

    Hank, you are a riot. I'm taking College Biology and I learned more from your video than my reading assignments for the past week. Thank you so much for making this! :)

  • @davidtimothy7319
    @davidtimothy7319 9 ปีที่แล้ว +194

    No flame war about Jesus comment; What is this dark magic?

    • @armoda1057
      @armoda1057 9 ปีที่แล้ว

      Dr Timothy it happened

    • @AbhayKumar-cm2kh
      @AbhayKumar-cm2kh 9 ปีที่แล้ว +3

      Jon Snow you know nothing, Jon Snow. [P.S. don't get offended]

    • @armoda1057
      @armoda1057 9 ปีที่แล้ว +3

      Abhay Kumar me knowing nothing got me killed.

    • @FROPDESAI
      @FROPDESAI 9 ปีที่แล้ว +4

      Jon Snow FOR THE WATCH!

    • @RK-ep8qy
      @RK-ep8qy 7 ปีที่แล้ว +12

      Dr Timothy well it wasn't really offensive, it wasn't mocking anything or anyone. Plus I think everyone's too smart to be dicks on here.

  • @SamanthaRichardsonWP
    @SamanthaRichardsonWP 10 ปีที่แล้ว +20

    "Around 32*F or 0*C if you're a scientist or from a part of the world where things make sense" LMFAO love you, Hank XD

  • @Oilofmercy
    @Oilofmercy 4 ปีที่แล้ว +1

    This is so wonderful and creative for someone who is a classical pianist, thanks for making it fun.

  • @camillestephenson883
    @camillestephenson883 9 ปีที่แล้ว +83

    Oh dear god. if there is water on Mars, DON'T. DRINK. IT.

    • @nicolasmerino2099
      @nicolasmerino2099 9 ปีที่แล้ว +2

      +Camille Stephenson DOCTOR WHO!!!

    • @stolasish1184
      @stolasish1184 9 ปีที่แล้ว +3

      2016, we found liquid water on mars.

    • @vamshidarisi8400
      @vamshidarisi8400 8 ปีที่แล้ว +2

      +Camille Stephenson dont drink it. if you do, then time will be rewritten (ish)

    • @ShortsTales
      @ShortsTales 7 ปีที่แล้ว +4

      2017, we found more liquid on mars.

    • @samanthacohen7272
      @samanthacohen7272 6 ปีที่แล้ว +1

      LOL😂😂😂

  • @ceoofdrugs4968
    @ceoofdrugs4968 ปีที่แล้ว +3

    5:22
    The CC I'm dying lmao

  • @ThisisAidan
    @ThisisAidan 8 ปีที่แล้ว +2

    Thank you Hank! I'm taking Lab Biology at my university right now, and this has helped cement quite a few ideas in my head! Your hard work is much appreciated!

  • @Taqsunis
    @Taqsunis 9 ปีที่แล้ว +5

    ty soooo much for these great videos

  • @henrysantos6331
    @henrysantos6331 11 ปีที่แล้ว +11

    5:25 penetrate and come into it. (I see what you did there Hank)

  • @kadenzxc
    @kadenzxc 6 ปีที่แล้ว

    I'm very familiar with this information; I was watching it on triple speed because I've heard it all explained many many times before. This is possibly the best explanation that I've ever seen so far.

  • @earthpcCHClS
    @earthpcCHClS 10 ปีที่แล้ว +14

    5:12 is hank smiling? i can't tell

    • @stevetin2529
      @stevetin2529 10 ปีที่แล้ว +12

      Hmm, he is watching the glass of water like a maniac

    • @funkyguy4321
      @funkyguy4321 10 ปีที่แล้ว

      Kimbinh Nguyen He is speaking.

  • @Liam-jd1iu
    @Liam-jd1iu 5 ปีที่แล้ว +5

    Who else is watching this while drinking water?

  • @brycefergusson8573
    @brycefergusson8573 9 ปีที่แล้ว

    This is one of the silliest Hank-featuring videos I've seen.

  • @drewyarbrough5666
    @drewyarbrough5666 5 ปีที่แล้ว +4

    1:06 It’s now 2019, and Opportunity has passed on😔

  • @andyyoung7657
    @andyyoung7657 11 ปีที่แล้ว +8

    "hats why we like putting hot water in a water bottle and cuddling with it when were lonely. Heh." umm hank, TMI.

  • @AdrianaMartinez-zq7bw
    @AdrianaMartinez-zq7bw 10 ปีที่แล้ว +1

    I just LOVE this guy!!! Thank you Hank! Love your sarcasm while you efficiently teach us! :D

  • @ericleecoronado6516
    @ericleecoronado6516 ปีที่แล้ว +5

    He forgot the most important bond…
    James Bond 😂😂😂😂
    I’m sorry