Khan Academy: 2757 products
Khan Academy is an organization on a mission. We're a not-for-profit with the goal of changing education for the better by providing a free world-class education for anyone anywhere.
All of the site's resources are available to anyone. It doesn't matter if you are a student, teacher, home-schooler, principal, adult returning to the classroom after 20 years, or a friendly alien just trying to get …
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Organic chemistry: Alkane and cycloalkane nomenclature II
Correction: 2,2,6,6,7-pentamethyloctane is the correct name. I put a dash instead of a comma between the 6 and the 7 on the video. Organic …
VideoFree13 minutes
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Organic chemistry: Acid and base catalyzed formation of hydrates and hemiacetals
How addition of acid or base can catalyze the formation of hydrates and hemiacetals. Organic chemistry Sal and Jay cover topics covered in …
VideoFree10 minutes
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Health and medicine: Liver
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree6 minutes
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Biology: Potassium-argon (K-Ar) dating
How K-Ar dating can be used to date very old volcanic rock and the things that might be buried in between Biology Life is beautiful! From a…
VideoFree11 minutes
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Electrical engineering: Switch block (nested)
We can combine switch blocks for more advanced behavior Electrical engineering Learn about electricity, circuit theory, and introductory el…
VideoFree3 minutes
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Biology: Endocytosis, phagocytosis, and pinocytosis
Bulk transport: endocytosis, phagocytosis, and pinocytosis. Biology Life is beautiful! From atoms to cells, from genes to proteins, from po…
VideoFree5 minutes
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Health and medicine: Arteries, arterioles, venules, and veins
Learn the differences between these blood vessels! Rishi is a pediatric infectious disease physician and works at Khan Academy. These video…
VideoFree8 minutes
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High school biology: Cartilage
High school biology The musculoskeletal system Topic: Science Learn about all the sciences, from physics, chemistry and biology, to cosmolo…
VideoFree4 minutes
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Organic chemistry: Protection of alcohols
Use of protecting groups to "hide" alcohols while other groups in a molecule react. Organic chemistry Sal and Jay cover topics covered in c…
VideoFree8 minutes
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Health and medicine: Osteoarthritis vs rheumatoid arthritis treatments
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree8 minutes
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Chemistry: Shorthand notation for galvanic/voltaic cells
How to describe cell using shorthand notation. Chemistry Did you know that everything is made out of chemicals? Chemistry is the study of m…
VideoFree7 minutes
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Biology: Ecology introduction
Ecology is the study of how living things interact with each other and their environment. This includes living things (biotic factors) and …
VideoFree10 minutes
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Electrical engineering: Fourier Series introduction
The Fourier Series allows us to model any arbitrary periodic signal with a combination of sines and cosines. In this video sequence Sal wor…
VideoFree5 minutes
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Organic chemistry: Ortho-para directors III
Moderate and weak activation, weak deactivation. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Ba…
VideoFree10 minutes
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Health and medicine: Labor (parturition)
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree10 minutes