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📝Fractions are everywhere in our daily lives! 🍎⚖️ From sharing a pizza to measuring ingredients, understanding fractions is key to mastering math. In this video, we’ll explore the introduction to fractions in a clear, fun, and simple way. Perfect for students who want to build a strong foundation and feel more confident with numbers. 🚀📘
#Fractions #MathBasics #LearnFractions #MathMadeEasy #MathForStudents #fractionfun
@telematematica
We don’t always say exactly what we mean, and yet we’re still pretty good at understanding each other. That’s because we don’t just use meaning to figure out what’s going on, we also use context. This episode of Crash Course Linguistics is all about pragmatics, the area of linguistics that deals with context. We’ll cover the four main assumptions we make about context in language, also known as Grice’s Maxims, as well as the ways that languages can use grammar to convey politeness, and the different types of conversational styles within and between languages.
Want even more linguistics? Check out the Lingthusiasm podcast, hosted by the writers of Crash Course Linguistics: https://lingthusiasm.com/
Carefree by Kevin MacLeod
Link: https://incompetech.filmmusic.....io/song/3476-carefre
License: http://creativecommons.org/licenses/by/4.0/
***
Watch our videos and review your learning with the Crash Course App!
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Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:
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Today we continue our unit on identity by asking where the mind resides. Hank explains the mind-body problem and several approaches to the question of where our minds reside, including reductive physicalism, substance dualism, and mysterianism.
--
Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios
Crash Course Philosophy is sponsored by Squarespace.
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This electronics video tutorial explains how to calculate the current in a parallel circuit using ohm's law. It contains examples with 2 resistors and one with 3 resistors connected in parallel.
Basic Electronics For Beginners: https://www.youtube.com/watch?v=uXr4lXYjXuU
The Electric Battery: https://www.youtube.com/watch?v=xrf6I_5vX64
Voltage, Current, & Resistance: https://www.youtube.com/watch?v=08YugQce9OA
What Is Voltage? https://www.youtube.com/watch?v=iQVgAVVXe6o
The Electron Volt: https://www.youtube.com/watch?v=DjQl4J-jePc
What Is Electric Potential Difference? https://www.youtube.com/watch?v=0Ckmt2QyeqQ
What Is Current? https://www.youtube.com/watch?v=lAtNqteyzQ8
What Is an Amp? https://www.youtube.com/watch?v=Y4aghGye1ic
Volts, Watts, & Amps: https://www.youtube.com/watch?v=PyLjnVJVM1s
Battery Capacity: https://www.youtube.com/watch?v=5JZ8E7B4FAY
_______________________________________________________________________________________________
Electrical Formulas: https://www.youtube.com/watch?v=Pv_-OU4Dluo
Electric Current & Circuits: https://www.youtube.com/watch?v=r-SCyD7f_zI
Internal Resistance of a Battery: https://www.youtube.com/watch?v=R1QN_0fcZ_8
Resistors In Series: https://www.youtube.com/watch?v=9z53qVQjasU
Resistor Color Code: https://www.youtube.com/watch?v=G1mZutobxDU
The Voltage Drop: https://www.youtube.com/watch?v=YYSKRU1kDt4
Kirchhoff's Voltage Law: https://www.youtube.com/watch?v=6F_rmZ1nXFQ
Kirchhoff's Current Law: https://www.youtube.com/watch?v=Q39xQUlTGew
Resistors In Parallel: https://www.youtube.com/watch?v=SYrOiQs3X2U
Ohm's Law - Practice Problems: https://www.youtube.com/watch?v=_rSHqvjDksg
Voltage Dividers: https://www.youtube.com/watch?v=JGXdi7XcQi8
Current Dividers: https://www.youtube.com/watch?v=PpfOH_uBKCw
Current Divider With 3 Parallel Resistors: https://www.youtube.com/watch?v=y-gwr8LCHKo
_______________________________________________________________________________________________
Series and Parallel Circuits - Mega Review: https://www.youtube.com/watch?v=wejz5s31Cts
Equivalent Resistance of Complex Circuits: https://www.youtube.com/watch?v=kjW4H3fKi8o
Solving Equivalent Resistance Circuits: https://www.youtube.com/watch?v=dEuBykX5_B4
Voltmeters and Ammeters: https://www.youtube.com/watch?v=NLPSHwDUYrY
How To Solve Complex DC Circuits: https://www.youtube.com/watch?v=eFlJy0cPbsY
KVL & KCL Circuit Analysis: https://www.youtube.com/watch?v=2Zu3ppq3n8I
Electric Power & Cost if Electricity - KWh: https://www.youtube.com/watch?v=i1TJV-9ljDs
Electricity - Basic Introduction: https://www.youtube.com/watch?v=ybuhfEa-PrU
Wire Gauge & Amperage: https://www.youtube.com/watch?v=KSYAqQ4xyJI
Intro to Multimeters: https://www.youtube.com/watch?v=n9Obx15AjdM
_______________________________________________________________________________________________
The Wheatstone Bridge Circuit: https://www.youtube.com/watch?v=jFvVtB10B1I
Node Voltage Method Circuit Analysis: https://www.youtube.com/watch?v=BMnFC63m1fQ
Mesh Current Circuit Analysis: https://www.youtube.com/watch?v=k5Tlg27JDtc
Norton's Theorem Circuit Analysis: https://www.youtube.com/watch?v=-kkvqr1wSwA
Thevenin's Theorem Circuit Analysis: https://www.youtube.com/watch?v=zTDgziJC-q8
The Superposition Theorem: https://www.youtube.com/watch?v=EX52BuZxpQM
Maximum Power Transfer: https://www.youtube.com/watch?v=8CA6ZNXgI-Y
_______________________________________________________________________________________________
How Do Capacitors Work? https://www.youtube.com/watch?v=ImpJUHenhTM
It's time to start talking about some of the terrible things you can do to your own body, like blood doping. We'll start by explaining the structure and function of your erythrocytes, and of hemoglobin, which they use to carry oxygen. We'll follow the formation and life cycle of a red blood cell, including how its levels are regulated by EPO and its signaling molecules. We'll wrap up by looking at how blood doping works and how it is truly a recipe for disaster.
Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: https://apple.co/3d4eyZo
Download it here for Android Devices: https://bit.ly/2SrDulJ
Chapters:
Introduction: Blood is Powerful Stuff 00:00
Form and Function of Erythrocytes (Red Blood Cells) 1:34
Hemoglobin 2:30
Formation of a Red Blood Cell: Hematopoiesis 4:11
How Erythropoietin (EPO) Regulates Blood Oxygen Levels 5:43
How Red Blood Cells Die 6:54
Don't Dope Your Blood! 7:53
Review 9:00
Credits 9:35
***
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:
Mark, Jan Schmid, Simun Niclasen, Robert Kunz, Daniel Baulig, Jason A Saslow, Eric Kitchen, Christian, Beatrice Jin, Anna-Ester Volozh, Eric Knight, Elliot Beter, Jeffrey Thompson, Ian Dundore, Stephen Lawless, Today I Found Out, James Craver, Jessica Wode, Sandra Aft, Jacob Ash, SR Foxley, Christy Huddleston, Steve Marshall, Chris Peters
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In this episode, Hank welcomes you to the new age, to the new age, welcome to the new age. Here he'll talk about transmutation among elements, isotopes, calculating half-life, radioactive decay, and spontaneous fission.
Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: https://apple.co/3d4eyZo
Download it here for Android Devices: https://bit.ly/2SrDulJ
--
Table of Contents
Radioactivity
Transmutation Among Elements and Isotopes
Calculating Half-Life
Radioactive Decay
Spontaneous Fission
--
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Hank describes the desperate need many organisms have for nutrients (specifically nitrogen and phosphorus) and how they go about getting them via the nitrogen and phosphorus cycles.
Table of Contents:
Nitrogen Cycle 1:46
Nitrogen Fixing Bacteria 2:32
Nitrifying Bacteria 3:24
Denitrifying Bacteria 4:34
Phosphorous Cycle 5:16
Lithosphere 5:27
Plants 5:56
Animals 5:56
Decomposers 5:56
Aquatic & Marine Ecosystems 6:24
Sedimentation & Weathering 6:55
Synthetic Fertilizers 7:23
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In which John Green teaches you about relations between the early English colonists and the Native people they encountered in the New World. In short, these relations were poor. As soon as they arrived, the English were in conflict with the native people. At Jamestown, Captain John Smith briefly managed to get the colony on pretty solid footing with the local tribes, but it didn't last, and a long series of wars with the natives ensued. This pattern would continue in US history, with settlers pushing into native lands and pushing the inhabitants further west. In this episode, you'll learn about Wahunsunacawh (who the English called Powhatan), his daughter Pocahontas, King Philip's (aka Metacom) War, and the Mystic Massacre. By and large, the history of the Natives and the English was not a happy one, even Thanksgiving wasn't all it's cracked up to be.
Hey teachers and students - Check out CommonLit's free collection of reading passages and curriculum resources to learn more about the events of this episode. The English tried and failed for a decade to establish a foothold in the New World in Native territory, leading to the lost colony of Roanoke: https://www.commonlit.org/text....s/settling-a-new-wor
When Jamestown was finally established in Virginia in 1607, the local Powhatan tribes sought friendly relations with the settlers, which quickly deteriorated: https://www.commonlit.org/text....s/chief-powhatan-s-a
Chapters:
Introduction 00:00
Native Americans' Relationship to English Settlers 0:28
Trade Between Europeans and Natives 1:36
Pochahontas 2:23
Conflict, Uprisings, and the Failure of the Virginia Company 3:10
The Puritans' Relationship with Native Americans 4:21
The Pequot War 5:45
King Phillip's War 6:35
Mystery Document 8:24
How Native Americans Resisted Colonization 9:49
Credits 10:54
Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse
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Kære venner
Skolestart er lige om hjørnet, så det er tid til at organisere og gennemgå mine værksteder. Jeg glæder mig så meget til at starte.
Måske du også vil arbejde med værksteder i matematik?
så kan du her få et indblik i, hvordan jeg organiserer og holder styr på mine værksteder, og hvordan vi bruger dem i undervisningen.
Hvis du kan lide videoen, så følg mig gerne på mine kanaler
Kh Anette K
https://facebook.com/anettekmatematik/
https://instagram.com/anettekmatematik/
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https://anettekmatematik.com/
#anettekmatematik #værkstedsundervisning #lærmatematik
In which John Green teaches you about Nationalism. Nationalism was everywhere in the 19th century, as people all over the world carved new nation-states out of old empires. Nationalist leaders changed the way people thought of themselves and the places they lived by reinventing education, military service, and the relationship between government and governed. In Japan, the traditional feudal society underwent a long transformation over the course of about 300 years to become a modern nation-state. John follows the course of Japanese history from the emergence of the Tokugawa Shogunate to the Meiji Restoration and covers Nationalism in many other countries along the way. All this, plus a special guest appearance, plus the return of an old friend on an extra-special episode of Crash Course.
Chapters:
Introduction: Nationalism 00:00
Nationalism Around the World 0:49
The Modern Nation-State 1:52
The Tokugawa Bakufu of Japan 4:59
The Meiji Era and Japanese Nationalism 7:43
An Open Letter to Public Education 9:19
The Dark Side of Nationalism 10:28
Credits 11:18
Resources:
A Modern History of Japan by Andrew Gordon https://bit.ly/3Ocfxu0
Giving Up the Gun by Noel Perrin https://bit.ly/37JFQqA
Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse
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This chemistry video tutorial focuses on avogadro's law which describes the relationship between moles and volume. This video contains plenty of examples and practice problems.
Pressure & Boiling Point: https://www.youtube.com/watch?v=6t50Gmo8tq0
Gas Pressure Unit Conversion:
https://www.youtube.com/watch?v=JNOg1OsxMUw
Manometers & Barometers:
https://www.youtube.com/watch?v=8P5NlpxGT7Y
Water Height & Mercury Column:
https://www.youtube.com/watch?v=C6iFuluQvJk
Boyle's Law Practice Problems:
https://www.youtube.com/watch?v=v8r_AU_TlPg
_________________________________
How Does a Bike Pump Work?
https://www.youtube.com/watch?v=I0b_i6-HLBA
Charles Law:
https://www.youtube.com/watch?v=uZ2d79NFx2w
Gay Lussac's Law:
https://www.youtube.com/watch?v=RszgzH_2A9k
Avogadro's Law:
https://www.youtube.com/watch?v=Czo2rIai5u0
Ideal Gas Law Problems:
https://www.youtube.com/watch?v=iaZ96KaQ44c
Combined Gas Law Problems:
https://www.youtube.com/watch?v=pFaYMR2UAGE
_______________________________
Gas Stoichiometry Problems:
https://www.youtube.com/watch?v=hPY7d6GUEV0
Molar Mass of a Gas at STP:
https://www.youtube.com/watch?v=XTiR7F6FzNc
Gas Density at STP:
https://www.youtube.com/watch?v=p8Mqx6CrDis
Dalton's Law of Partial Pressure:
https://www.youtube.com/watch?v=J7YRwU7IV8Q
Collecting Gas Over Water:
https://www.youtube.com/watch?v=1obOU5CxoQ4
_______________________________
Gas Density of Mixtures:
https://www.youtube.com/watch?v=OOD4Wg_TwX4
Average Kinetic Energy of a Gas:
https://www.youtube.com/watch?v=drZe2cCu-mc
Graham's Law of Effusion:
https://www.youtube.com/watch?v=urJI2RHZ42k
Kinetic Molecular Theory of Gases:
https://www.youtube.com/watch?v=iAsP-9m2aH0
Gas Law Problems Review:
https://www.youtube.com/watch?v=2ZtLDXF1V6w
_________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/
Full-Length Videos and Worksheets:
https://www.patreon.com/MathSc....ienceTutor/collectio
In which John Green teaches you about the post-World War II breakup of most of the European empires. As you'll remember from previous installments of Crash Course, Europeans spent several centuries sailing around the world creating empires, despite the fact that most of the places they conquered were perfectly happy to carry on alone. After World War II, most of these empires collapsed. This is the story of those collapses. In most places, the end of empire was not orderly, and violence often ensued. While India was a (sort of) shining example of non-violent change, in places like The Congo, Egypt, Rwanda, Vietnam, Cambodia, and Laos, things didn't go smoothly at all. John brings you all this, plus pictures of Sea Monkeys. Sadly, they don't look anything like those awesome commercials in the comic books.
Chapters:
Introduction: Decolonization 00:00
What Happens When Empires Fall? 0:33
Post-WWII Decolonization 2:24
Decolonization in India 3:14
Mohandas K. Gandhi 3:47
An Open Letter to Hunger Strikers 5:43
Indonesian Nationalism 6:40
The End of Colonization in French Indochina (Vietnam, Laos, and Cambodia) 7:51
Gamal Abdul Nasser and Egyptian Nationalism 8:35
Decolonization in Central and Southern Africa 9:16
Credits 12:10
Resources:
The Columbia History of the 20th Century https://bit.ly/3xrdpZ9
Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse
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This video provides a basic introduction into the top 10 most important formulas used in excel. These include the average function, autosum, Sum If, Count, Counta, Count If function, Concantenate, If logical function, Vlookup, and Drop Down Lists.
Excel Tutorial For Beginners:
https://www.youtube.com/watch?v=nK-uNYuvcag
Top 30 Excel Tips & Shortcuts:
https://www.youtube.com/watch?v=UMad9_-4rOU
_________________________________________
Excel - Statistics - Mean, Median, Mode:
https://www.youtube.com/watch?v=aRR86imVsxM
Excel Scatter Charts:
https://www.youtube.com/watch?v=hwqq0HYrers
Excel - Finding Slope & Y-Intercept:
https://www.youtube.com/watch?v=KwQsV77bYDY
Solving Polynomial Equations - Goal Seek:
https://www.youtube.com/watch?v=lomAl6XB_SM
__________________________________________
How To Calculate Loan Payments In Excel:
https://www.youtube.com/watch?v=ifbNN2SoKlk
How To Create an Amortization Table:
https://www.youtube.com/watch?v=QZfMW203v4U
How To Look Up Customer Data In Excel:
https://www.youtube.com/watch?v=HDda6ny40ZM
How To Create a Data Entry Form In Excel:
https://www.youtube.com/watch?v=_tZLGBgQCYo
_________________________________________
YouTube Channel Growth Accelerator:
https://vimeo.com/ondemand/youtubeaccelerator
Algebra For Beginners:
https://www.video-tutor.net/al....gebra-for-beginners-
Final Exams and Video Playlists:
https://www.video-tutor.net/
Full-Length Math & Science Videos:
https://www.patreon.com/mathsc....iencetutor/collectio
The early 1900s was an amazing time for Western science, as Albert Einstein was developing his theories of relativity and psychology was born, as Sigmund Freud and psychoanalysis took over the scientific mainstream. Karl Popper observed these developments firsthand and came to draw a distinction between what he referred to as science and pseudoscience, which might best be summarized as science disconfirms, while pseudoscience confirms. While the way we describe these disciplines has changed in the intervening years, Popper’s ideas speak to the heart of how we arrive at knowledge.
--
Wanted: Santa Clause by Kevin Dooley https://www.flickr.com/photos/....pagedooley/312444309 licensed under CC BY 2.0: https://creativecommons.org/licenses/by/2.0/
Rudolph the Red-Nosed Reindeer copyright Rankin/Bass Productions & DreamWorks Classics
Other images and video via VideoBlocks or Wikimedia Commons, licensed under Creative Commons by 4.0: https://creativecommons.org/licenses/by/4.0/
--
Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios
Crash Course Philosophy is sponsored by Squarespace.
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Download Idle Siege now to get 240 gems: https://gmlft.co/SimpleHistoryYT
Thank you Gameloft for sponsoring this video!
1998, Offshore of Sokcho, Gangwon-do. One tangled boi South Korean fishing boat against one highly advanced stealth North Korean Submarine controlled by an experienced crew. What happened here?
Become a Simple History member: https://www.youtube.com/simplehistory/join
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Copyright: DO NOT translate and re-upload our content on Youtube or other social media.
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Get the Simple History books on Amazon:
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Credit:
Created by Daniel Turner (B.A. (Hons) in History, University College London)
Script: Conan White
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At the end of the Civil War, the United States was still a very divided place. 700,000 people had died in a bitter fight over slavery. Reconstruction was the political process meant to bring the country back together. It was also the mechanism by which the country would extend the rights of citizenship to Black Americans, particularly those who had been recently emancipated. Today we'll learn about the Reconstruction amendments, the Freedman's Bureau, and the election of 1876, among other things.
Clint's book, How the Word is Passed is available now! https://bookshop.org/a/3859/9780316492935
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
Sources
W.E.B. Du Bois, Black Reconstruction in America, 1860-1880 , 3rd. ed.. New York: The Free Press, 1992.
Eric Foner, Reconstruction: America’s Unfinished Revolution, 1863- 1877. New York: HarperCollins, 2002.
Henry Louis Gates, Jr. Stony the Road: Reconstruction, White Supremacy, and the Rise of Jim Crow . New York: Penguin Books, 2019.
Hilary Green, Educational Reconstruction: African American Schools in the Urban South, 1865-1890. New York: Fordham University Press, 2016.
Martha S. Jones, All Bound Up Together: The Woman Question in African American Public Culture, 1830-1900 . Chapel Hill: University of North Carolina Press, 2007.
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:
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, Jaime Willis, Krystle Young, Michael Dowling, Alexis B, Rene Duedam, Burt Humburg, Aziz, 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, Eric Prestemon, Jirat, Katie Dean, TheDaemonCatJr, Wai Jack Sin, Ian Dundore, Matthew, Justin, Jessica Wode, Mark, Caleb Weeks
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#crashcourse #blackhistory #civilwar
Pass the GED SCIENCE 2025 with standard GED science test questions.
Complete FREE GED SCIENCE course.
Topics Covered in First Video: Part 1.
Foundations of Science:
a. Scientific method and inquiry
b. Experimental design and data analysis
c. Units, measurements, and conversions
d. Safety in the laboratory
Life Science:
a. Properties of life and characteristics of living organisms
b. Cellular biology: structure, function, and processes
c. Molecular biology: DNA, RNA, and protein synthesis
d. Genetics, heredity, and biotechnology
e. Evolution, natural selection, and biodiversity
Topics Covered in this Video: Part 2
f. Classification and taxonomy of living organisms
g. Ecology: ecosystems, energy flow, and ecological relationships
h. Human anatomy, physiology, and health
Physical Science:
a. Matter: properties, states, and phase changes
Topics Covered in Third Video: Part 3
b. Atomic theory, structure, and the periodic table
c. Chemical bonding, reactions, and stoichiometry
d. Thermodynamics and heat transfer
e. Mechanics: forces, motion, energy, and conservation laws
f. Fluid dynamics and properties of gases
g. Waves: properties, sound, and light
h. Electricity, magnetism, and electromagnetism
Topics Covered in Fourth Video: Part 4
Earth and Space Science:
a. Geology: Earth's structure, composition, and processes
b. Plate tectonics, rock cycle, and minerals
c. Meteorology: weather, climate, and atmospheric processes
d. Hydrology: water cycle, oceans, and freshwater resources
e. Astronomy: celestial bodies, solar system, and the universe
f. Earth in the context of the solar system and the universe
Environmental Science and Sustainability:
a. Human impact on the environment
b. Natural resources and their management
c. Pollution, waste, and mitigation strategies
d. Climate change and its consequences
e. Sustainable development and renewable energy sources
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James Cameron rocketed onto the action film scene with 1984's "The Terminator" and followed that up with a highly anticipated sequel to the 1979 film, "Alien." His film, "Aliens," would go on to not only be a financial success, but a critical one and has become a staple of action, science fiction, and effects filmmaking.
But, "Aliens" also rewards a deeper look through a critical lens in both some positive and not so positive ways.
***Alien and Aliens are the property of 20th Century Fox.
Check out all 15 films we'll be talking about below!!!
***Film Selection***
Citizen Kane
Aliens
Where Are My Children?
Selma
In the Mood For Love
Do the Right Thing
Lost In Translation
Apocalypse Now
Pan's Labyrinth
The Limey
Three Colors: Blue
The Eagle Huntress
Moonlight
Beasts of No Nation
2001: A Space Odyssey
***
Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios
The Latest from PBS Digital Studios: https://www.youtube.com/playli....st?list=PL1mtdjDVOoO
***
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This video has been edited for the classroom.
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