AP Bio: Water

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ความคิดเห็น • 28

  • @michaelpisciarino5348
    @michaelpisciarino5348 5 ปีที่แล้ว +38

    0:07 Water (a sign of life)
    1:45 Water Chemistry (H2O) polar Hydrogen bonds
    3:53 Water Chracteristics
    Cohesion = Sticking to itself
    Adhesion = Sticking to other things
    Capillarity
    High Surface Tension
    6:16 High Specific Heat (Helps regulate temperature, slows change of internal temperature when in harsh conditions)
    Density and State (Ice Floats)
    Universal Solvent (mixes with almost anything)
    9:36 PH (Power of Hydrogen) Levels
    PH 1-6= More Acidic
    PH 7= Neutral
    Ph 8-14= More Basic
    12:23 Buffers (help balance PH levels, maintain homeostasis)

  • @LucidSunset
    @LucidSunset 6 ปีที่แล้ว +18

    I’m so glad I found you. You explain in a manner that makes it easier for me to understand and retain.

  • @aha12239
    @aha12239 8 ปีที่แล้ว +11

    THANK YOU, I HAVE MY BIO EXAM IN A WEEK AND YOU SAVED ME :) :)

    • @xur1317
      @xur1317 4 ปีที่แล้ว

      What did u get

    • @nn-taleb
      @nn-taleb 2 ปีที่แล้ว

      @@xur1317 yes @Athba Alarti I am also curious, what did you get on the exam?

  • @melissaluis7288
    @melissaluis7288 6 ปีที่แล้ว +3

    Thank you, you explain things real well!

  • @mogadordream9241
    @mogadordream9241 8 ปีที่แล้ว +1

    You explained every thing very well. I am very happy. it's all about the "very" thing

  • @cassandratafolla
    @cassandratafolla 7 ปีที่แล้ว +5

    going to revisit tomorrow for my AP Bio exam on Monday. Need to make sure I do well on my first exam of the year. Love the great depth explanation.
    I took CP Biology in freshman year and passed the year with a A in the class, I am nervous that I won't do so well in AP Bio like I did in CP Bio. Any study suggestions?

  • @luanaluv6
    @luanaluv6 9 ปีที่แล้ว +8

    YOU ARE MY HERO OKAY

    • @rahmmehra5583
      @rahmmehra5583 ปีที่แล้ว

      7 years ago now bro is in college dang

  • @archangel1309
    @archangel1309 ปีที่แล้ว

    Which topic discusses water potential?

  • @tenzinchokdup8431
    @tenzinchokdup8431 6 ปีที่แล้ว +1

    a question how can i walk like jeuses on water

    • @ScienceWithJohnston
      @ScienceWithJohnston  6 ปีที่แล้ว +11

      Easiest way: freeze the water before you walk on it. You can even skate on it if you'd like to earn style points. Good luck.

  • @emmanuelamoh7181
    @emmanuelamoh7181 6 ปีที่แล้ว

    Thank you :D. This was very helpful

  • @jefferyhaa6227
    @jefferyhaa6227 5 ปีที่แล้ว

    Does anybody know when these vedios released?

  • @syedah9941
    @syedah9941 7 ปีที่แล้ว +1

    What exactly do you mean by partial charges?

    • @ScienceWithJohnston
      @ScienceWithJohnston  7 ปีที่แล้ว +14

      Well there are three common scenarios when you are talking about bonding. One is you share electrons, and you do so equally. So we start up a business together and share the money 50/50. We call this non-polar, and it has no charge imbalance. Next we could start that business, but split it 70/30. When this happens with electrons one atom or part of the molecule has more of the electrons than the other. They are still sharing, but just not equally. Because it is not 100/0 though, it isn't a full charge, it is only a partial positive or negative charge. If it was a full charge I get everything and you get nothing. This happens with ionic bonds where some ions lose electron(s), and other gain the electrons. There is no sharing involved. Typed this quick, so I hope it makes sense.

  • @MyrahOfficial
    @MyrahOfficial 4 ปีที่แล้ว

    Really nice vid... thnx alot

  • @luanaluv6
    @luanaluv6 9 ปีที่แล้ว +2

    THANK U SO MUCH

  • @iklavyagaming8843
    @iklavyagaming8843 4 ปีที่แล้ว

    I wish i was an insect. Then i could go on water without a boat.

  • @LuisLopez-wd3qc
    @LuisLopez-wd3qc 7 ปีที่แล้ว

    Nice video !

  • @diannahernandezchambi4423
    @diannahernandezchambi4423 6 ปีที่แล้ว

    Helpful!