CrashCourse
Download on the App Store

CrashCourse episodes

  • What is a Species? Crash Course Zoology #13

    Today, in the penultimate episode of Crash Course Zoology, we're going to use everything we've learned so far to try and figure out what a "species" even is anyway! As you'll see, the incredible diversity of animals makes it really difficult to fit animals into neat categories so scientists have employed a variety of approaches to categorizing animals.

    Check out Bizarre Beast's Episode on the Western Fence Lizard! https://www.youtube.com/watch?v=mGgg50OOHBo

    🦔🐒🐝🐛🐘🐍🐀🐠 🐢🐋🐅🦓🦇🦜🐜🪱🦑 🦀🐊

    Learn more about Rae here! https://www.raewynngrant.com​​

    Watch our videos and review your learning with the Crash Course App!
    Download here for Apple Devices: https://apple.co/3d4eyZo
    Download here for Android Devices: https://bit.ly/2SrDulJ

    Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

    Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:

    Michael M. Varughese, Ben Follows, Kyle & Katherine Callahan, Laurel A Stevens, Chris Routh, Evan Lawrence Henderson, Vincent, Emilee Murphy, Michael Wang, Jordan willis, Krystle Young, Michael Dowling, Alexis B, Rene Duedam, Burt Humburg, Aziz, Nick, DAVID MORTON HUDSON, Perry Joyce, Scott Harrison, Mark & Susan Billian, Junrong Eric Zhu, Alan Bridgeman, Rachel Creager, Jennifer Smith, Matt Curls, Tim Kwist, Jonathan Zbikowski, Jennifer Killen, Sarah & Nathan Catchings, Brandon Westmoreland, team dorsey, Trevin Beattie, Divonne Holmes à Court, Eric Koslow, Indika Siriwardena, Khaled El Shalakany, Jason Rostoker, Shawn Arnold, Siobhán, Ken Penttinen, Nathan Taylor, William McGraw, Andrei Krishkevich, ThatAmericanClare, Rizwan Kassim, Sam Ferguson, Alex Hackman, Eric Prestemon, Jirat, Katie Dean, TheDaemonCatJr, Wai Jack Sin, Ian Dundore, Matthew, Jason A Saslow, Justin, Jessica Wode, Mark, Caleb Weeks
    __

    Want to find Crash Course elsewhere on the internet?
    Facebook - http://www.facebook.com/YouTubeCrashCourse
    Twitter - http://www.twitter.com/TheCrashCourse
    Tumblr - http://thecrashcourse.tumblr.com
    Support Crash Course on Patreon: http://patreon.com/crashcourse

    CC Kids: http://www.youtube.com/crashcoursekids

    Learn more about your ad choices. Visit megaphone.fm/adchoices

    19 min
  • Altered States: Crash Course Psychology #10

    You may think you know all about hypnosis from the movies. Zoolander, The Manchurian Candidate, etc... but there's a whole lot more going on. In this episode of Crash Course Psychology, Hank tells us about some of the many altered states of consciousness, including hypnosis.

    Want more videos about psychology? Check out our sister channel SciShow Psych at https://www.youtube.com/scishowpsych

    --
    Chapters:
    Introduction: Hypnosis & Altered States of Consciousness 00:00
    Facts & Fallacies About Hypnosis 2:00
    How does hypnosis work? 3:05
    Drug Tolerance & Neuroadaptation 4:49
    Psychoactive Drugs 5:51
    Depressants 6:28
    Stimulants 7:35
    Hallucinogens/Psychedelics 9:04
    Non-Drug Induced Hallucinations 9:33
    Review & Credits 10:32
    --

    Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

    Want to find Crash Course elsewhere on the internet?
    Facebook - http://www.facebook.com/YouTubeCrashCourse
    Twitter - http://www.twitter.com/TheCrashCourse
    Instagram - https://www.instagram.com/thecrashcourse/

    CC Kids: http://www.youtube.com/crashcoursekids

    Learn more about your ad choices. Visit megaphone.fm/adchoices

    17 min
  • Tyranny of the Map: Crash Course Geography #35

    Today we’re going to talk about borders. Borders can bring people together, evoke passion and war, divide, conquer, and solidify power. We’re going to focus on the tyranny of the map which is what happens when those in power draw boundaries in ways that conflict with how people in that place want to be grouped. We’ll look at the repercussions of the Berlin Conference of 1884 on boundaries within Africa, take a closer look at continued political unrest in Mali, and look at how this can even happen at a local level like when gerrymandering occurs within a US state.

    [Sources]

    In general
    CIA Factbook: https://www.cia.gov/library/publications/resources/the-world-factbook/docs/one_page_summaries.html
    Getis, Bjelland, and Getis. Introduction to Geography, 15 ed. McGraw-Hill Education. 2017. ISBN: 978-1-259-57000-1
    Gregory, Derek, Ron Johnston, Geraldine Pratt, Michael Watts, and Sarah Whatmore, eds. 2009. The Dictionary of Human Geography. 5th ed. Willey-Blackwell. ISBN: 978-1-4051-3288-6
    Cracking the AP Human Geography Exam: 2020 edition. The Princeton Review.
    For a free and open source option for Intro to Human Geography, see: https://humangeography.pressbooks.com/
    For a free and open source option for World Regional Geography, see: https://worldgeography.pressbooks.com/front-matter/introduction/

    Mali
    https://afropop.org/audio-programs/hip-deep-in-mali-the-tuareg-predicament
    https://journals.ohiolink.edu/apexprod/f?p=1507:200::::200:P200_ARTICLEID:374484289
    https://www.cfr.org/global-conflict-tracker/conflict/destabilization-mali
    https://sgp.fas.org/crs/row/IF10116.pdf
    https://www.cia.gov/the-world-factbook/countries/mali/
    https://www.aspeniaonline.it/wp-content/uploads/2013/04/keys-ing_080413.pdf
    Democracy versus the People by Andy Morgan: https://journals.ohiolink.edu/apexprod/rws_ejcsearch/r/1507/99?p99_entity_id=290802583&p99_entity_type=MAIN_FILE&cs=3vnpEQN7KjqzffLDIWPKj0UtKNSB71ybNuCSObxHOYTju_pm9F9zNmfXxMFAS1Xgnc6AG9dV6UMXLfqZLZuyt-Q
    https://afropop.org/articles/andy-morgan-on-tuareg-music-and-history
    https://www.bbc.com/news/world-africa-22961519
    https://openknowledge.worldbank.org/handle/10986/26077
    https://afropop.org/audio-programs/hip-deep-in-mali-the-tuareg-predicament

    Boundaries
    https://www.cambridge.org/core/journals/international-organization/article/mapping-the-sovereign-state-technology-authority-and-systemic-change/0C0A5F17B945CFE437DA681D2C5FE025
    https://link.springer.com/article/10.1007%2Fs11186-016-9264-0#Sec6

    South Sudan
    https://www.cia.gov/the-world-factbook/countries/south-sudan/

    Watch our videos and review your learning with the Crash Course App!
    Download here for Apple Devices: https://apple.co/3d4eyZo
    Download here for Android Devices: https://bit.ly/2SrDulJ

    Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

    Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:
    DL Singfield, Jeremy Mysliwiec, Shannon McCone, Amelia Ryczek, Ken Davidian, Brian Zachariah, Stephen Akuffo, Toni Miles, Oscar Pinto-Reyes, Erin Nicole, Steve Segreto, Michael M. Varughese, Kyle & Katherine Callahan, Laurel A Stevens, Vincent, Michael Wang, Stacey Gillespie, Jaime Willis, Krystle Young, Michael Dowling, Alexis B, Rene Duedam, Burt Humburg, Aziz Y, DAVID MORTON HUDSON, Perry Joyce, Scott Harrison, Mark & Susan Billian, Junrong Eric Zhu, Alan Bridgeman, Rachel Creager, Jennifer Smith, Matt Curls, Tim Kwist, Jonathan Zbikowski, Jennifer Killen, Sarah & Nathan Catchings, Brandon Westmoreland, team dorsey, Trevin Beattie, Divonne Holmes à Court, Eric Koslow, Jennifer Dineen, Indika Siriwardena, Khaled El Shalakany, Jason Rostoker, Shawn Arnold, Siobhán, Ken Penttinen, Nathan Taylor, William McGraw, Andrei Krishkevich, ThatAmericanClare, Rizwan Kassim, Sam Ferguson, Alex Hackman, Jirat, Katie

    Learn more about your ad choices. Visit megaphone.fm/adchoices

    17 min
  • What Are Plants Made Of? Crash Course Botany #2

    When you eat a salad for lunch, you’re digging into a giant pile of plant organs. That’s right—plants are made up of organs, only theirs follow a totally different set of rules from our own. In this episode of Crash Course Botany, we’ll explore what it takes to build a plant, including roots, leaves, and stems, and how one little tomato went all the way to the U.S. Supreme Court.

    Chapters
    Introduction: Plant Organs 00:00
    Stem Cells & Meristems 1:12
    Stems 3:19
    Leaves 4:32
    Roots 6:55
    Fruits & Vegetables 9:36
    Review 14:23
    Extra Credit 15:57

    Sources: https://docs.google.com/document/d/1PB6WdUJcABAccO-U-t6ic7WbfP2z0Pr5P9a8HMr6zh4/edit?usp=sharing

    Check out Women of Earth from PBS Terra here: https://youtube.com/playlist?list=PLnNZYWyBGJ1GtO7rajhe7u7dj-PegxDc5

    ***
    Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

    Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:
    Tawny Whaley, Sean Saunders, Katie, Tori Thomas, DL Singfield, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Kyle & Katherine Callahan, Laurel Stevens, Burt Humburg, Aziz Y, Perry Joyce, Scott Harrison, Mark & Susan Billian, Alan Bridgeman, Rachel Creager, Breanna Bosso, Matt Curls, Jennifer Killen, Jon Allen, Sarah & Nathan Catchings, team dorsey, Trevin Beattie, Eric Koslow, Jennifer Dineen, Indija-ka Siriwardena, Jason Rostoker, Ken Penttinen, Nathan Taylor, Les Aker, William McGraw, ClareG, Rizwan Kassim, Constance Urist, Alex Hackman, Pineapples of Solidarity, Katie Dean, Stephen McCandless, Wai Jack Sin, Ian Dundore, Caleb Weeks
    __

    Want to find Crash Course elsewhere on the internet?
    Facebook - http://www.facebook.com/YouTubeCrashCourse
    Twitter - http://www.twitter.com/TheCrashCourse
    Instagram - https://www.instagram.com/thecrashcourse/

    CC Kids: http://www.youtube.com/crashcoursekids

    Learn more about your ad choices. Visit megaphone.fm/adchoices

    23 min
  • Frankenstein, Part 2: Crash Course Literature 206

    In which John Green continues to teach you about Mary Shelley's Frankenstein. You'll learn about romantic vs Romantic, the latter of which is a literary movement. John will also look at a few different critical readings of Frankenstein, and you'll learn about Victor's motivations. We'll also look a little bit at the moral limitations of science, if there are any.

    Consider supporting local bookstores by purchasing your books through our Bookshop affiliate link https://bookshop.org/shop/complexly​ or at your local bookseller.

    Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

    Want to find Crash Course elsewhere on the internet?
    Facebook - http://www.facebook.com/YouTubeCrashCourse
    Twitter - http://www.twitter.com/TheCrashCourse
    Instagram - https://www.instagram.com/thecrashcourse/

    CC Kids: http://www.youtube.com/crashcoursekids

    Learn more about your ad choices. Visit megaphone.fm/adchoices

    18 min
  • Plant Cells and Hormones: Crash Course Botany #3

    At first glance, plant and animal cells have a lot in common: they’re both highly organized, keep their DNA tucked away in an envelope, and are kinda juicy inside. But plant cells have evolved some wild features that set them apart from animal cells. In this episode of Crash Course Botany, we’ll ask: are plants more than the sum of their cells?

    Chapters:
    The Discovery of Cells 00:00
    Plant & Animal Cell Similarities 1:31
    Plant & Animal Cell Differences 3:46
    Plant Hormones 6:53
    Auxin 9:29
    Plant Cell Theories 10:40
    Review & Credits 11:42

    Sources: https://docs.google.com/document/d/1PB6WdUJcABAccO-U-t6ic7WbfP2z0Pr5P9a8HMr6zh4/edit?usp=sharing

    ***
    Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

    Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:
    Tawny Whaley, Sean Saunders, Katie, Tori Thomas, DL Singfield, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Kyle & Katherine Callahan, Laurel Stevens, Burt Humburg, Aziz Y, Perry Joyce, Scott Harrison, Mark & Susan Billian, Alan Bridgeman, Rachel Creager, Breanna Bosso, Matt Curls, Jennifer Killen, Jon Allen, Sarah & Nathan Catchings, team dorsey, Trevin Beattie, Eric Koslow, Jennifer Dineen, Indija-ka Siriwardena, Jason Rostoker, Ken Penttinen, Nathan Taylor, Les Aker, William McGraw, ClareG, Rizwan Kassim, Constance Urist, Alex Hackman, Pineapples of Solidarity, Katie Dean, Stephen McCandless, Wai Jack Sin, Ian Dundore, Caleb Weeks
    __

    Want to find Crash Course elsewhere on the internet?
    Instagram - https://www.instagram.com/thecrashcourse/
    Facebook - http://www.facebook.com/YouTubeCrashCourse
    Twitter - http://www.twitter.com/TheCrashCourse

    CC Kids: http://www.youtube.com/crashcoursekids

    Learn more about your ad choices. Visit megaphone.fm/adchoices

    19 min
  • To Sleep, Perchance to Dream: Crash Course Psychology #9

    Why do we sleep? Well... that's a tricky question. More easily answered is the question, "How do we sleep?" In this episode of Crash Course Psychology, Hank discusses some of the ways our brain functions when sleeping and how it can malfunction as well.

    Want more videos about psychology? Check out our sister channel SciShow Psych at https://www.youtube.com/scishowpsych!

    --
    Chapters:
    Introduction: What Happens When We're Sleeping? 00:00
    What is sleep and why do we do it? 1:20
    How do we sleep? 1:56
    Rapid Eye Movement (REM) 2:38
    4 Stages of Sleep 3:08
    Sleep Deprivation 4:28
    Sleep Disorders 4:47
    What do we dream about? 6:08
    Why do we dream? 7:26
    Review & Credits 9:46
    --

    Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

    Want to find Crash Course elsewhere on the internet?
    Facebook - http://www.facebook.com/YouTubeCrashCourse
    Twitter - http://www.twitter.com/TheCrashCourse
    Instagram - https://www.instagram.com/thecrashcourse/

    CC Kids: http://www.youtube.com/crashcoursekids

    Learn more about your ad choices. Visit megaphone.fm/adchoices

    15 min
  • International IP Law: Crash Course Intellectual Property #6

    This week, Stan Muller teaches you how intellectual property law functions internationally. Like, between countries. Well, guess what. There's kind of no such thing as international law. But we can talk about treaties. There is a bevy of international treaties that regulate how countries deal with each others' IP. The upside is that this cooperation tends to foster international trade. The downside is that these treaties tend to stifle creativity by making it harder to shorten copyright terms. You win some, you lose some.

    Crash Course is now on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

    Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:
    Mark Brouwer, Jan Schmid, Steve Marshall, Anna-Ester Volozh, Sandra Aft, Brad Wardell, Christian Ludvigsen, Robert Kunz, Jason, A Saslow, Jacob Ash, Jeffrey Thompson, Jessica Simmons, James Craver, Simun Niclasen, SR Foxley, Roger C. Rocha, Nevin, Spoljaric, Eric Knight, Elliot Beter, Jessica Wode

    --
    Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

    Want to find Crash Course elsewhere on the internet?
    Facebook - http://www.facebook.com/YouTubeCrashCourse
    Twitter - http://www.twitter.com/TheCrashCourse
    Instagram - https://www.instagram.com/thecrashcourse/

    CC Kids: http://www.youtube.com/crashcoursekids

    Learn more about your ad choices. Visit megaphone.fm/adchoices

    15 min
  • Introduction to Biology: Crash Course Biology #1

    Biology is the study of life—a four-letter word that connects you to 4 billion years worth of family tree. The word “life” can be tricky to define, but a shared set of characteristics helps biologists identify living things. In this episode of Crash Course Biology, you’ll learn how all of life is connected, and why studying biology can help us better understand ourselves and our relationship to all living things.

    Chapters:
    Welcome to Crash Course Biology! 00:00
    Life's Characteristics 2:14
    Is a Virus Alive? 6:18
    Life Beyond Earth 8:52
    Biology and You 10:03
    All Life is Connected 10:44
    Review & Credits 11:59

    Sources: https://docs.google.com/document/d/1GLDtAXE6ekg4Chk2qN3TYbNt0pJbyaHqTqRd6QY8pd4/edit?usp=sharing

    This series was produced in collaboration with HHMI BioInteractive, committed to empowering educators and inspiring students with engaging, accessible, and quality classroom resources. Visit https://BioInteractive.org/CrashCourse for more information.

    Check out a free collection of kahoots based on this video here: https://create.kahoot.it/course/ccc14ccd-b511-4c6a-bd54-30965b18e530

    Are you an educator looking for what NGSS Standards are covered in this episode? Check out our Educator Standards Database for Biology here: https://www.thecrashcourse.com/biologystandards

    Check out our Biology playlist here: https://www.youtube.com/playlist?list=PL8dPuuaLjXtPW_ofbxdHNciuLoTRLPMgB

    Watch this series in Spanish on our Crash Course en Español channel here: https://www.youtube.com/playlist?list=PLkcbA0DkuFjWQZzjwF6w_gUrE_5_d3vd3

    Crash Course Biology is hosted by Dr. Samuel Ramsey. Learn more about him here: https://www.drsammy.online/

    ***
    Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

    Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:
    Katie, Tori Thomas, DL Singfield, Ken Davidian, Stephen Akuffo, Toni Miles, Steve Segreto, Kyle & Katherine Callahan, Laurel Stevens, Burt Humburg, Allyson Martin, Aziz Y, Perry Joyce, Scott Harrison, Mark & Susan Billian, Alan Bridgeman, Rachel Creager, Breanna Bosso, Matt Curls, Jennifer Killen, Jon Allen, Sarah & Nathan Catchings, team dorsey, Trevin Beattie, Eric Koslow, Jennifer Dineen, Indija-ka Siriwardena, Jason Rostoker, Siobhán, Ken Penttinen, Nathan Taylor, Les Aker, William McGraw, ClareG, Rizwan Kassim, Constance Urist, Alex Hackman, Pineapples of Solidarity, Katie Dean, Stephen McCandless, Wai Jack Sin, Ian Dundore, Justin, Mark, Caleb Weeks.
    __

    Want to find Crash Course elsewhere on the internet?
    Facebook - http://www.facebook.com/YouTubeCrashCourse
    Twitter - http://www.twitter.com/TheCrashCourse
    Instagram - https://www.instagram.com/thecrashcourse/

    CC Kids: http://www.youtube.com/crashcoursekids

    Learn more about your ad choices. Visit megaphone.fm/adchoices

    19 min
  • Don't Reanimate Corpses! Frankenstein Part 1: Crash Course Literature 205

    In which John Green teaches you about Mary Shelley's novel, Frankenstein. Sure, you know Frankenstein the cultural phenomenon, but how much do you know about the novel that started it all? You'll learn about the Romantic movement in English lit, of which Frankenstein is a GREAT example, and you'll learn that Frankenstein might just be the first SciFi novel. Once again, literature comes down to just what it means to be human. John will review the plot, take you through a couple of different critical readings of the novel, and will discuss the final disposition of Percy Shelley's heart.

    Consider supporting local bookstores by purchasing your books through our Bookshop affiliate link https://bookshop.org/shop/complexly​ or at your local bookseller.


    Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

    Want to find Crash Course elsewhere on the internet?
    Facebook - http://www.facebook.com/YouTubeCrashCourse
    Twitter - http://www.twitter.com/TheCrashCourse
    Instagram - https://www.instagram.com/thecrashcourse/

    CC Kids: http://www.youtube.com/crashcoursekids

    Learn more about your ad choices. Visit megaphone.fm/adchoices

    19 min

About CrashCourse

From the publisher's feed

At Crash Course, we believe that high-quality educational videos should be available to everyone for free! Subscribe for weekly videos from our current courses! The Crash Course team has produced more…