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: 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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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
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Organic chemistry: Aromatic heterocycles I
The aromaticity of heterocycles (rings containing one or more non-carbon atoms). Organic chemistry Sal and Jay cover topics covered in coll…
VideoFree12 minutes
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Health and medicine: Units for common medical lab values
Figure out how to interpret the units in common medical labs including the CBC, Chem 10, and LFTs. Rishi is a pediatric infectious disease …
VideoFree11 minutes
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Health and medicine: Lung cancer metastasis
Metastasis is the spread of cancer cells from one area of the body (such as an organ) to another. As cancerous cells multiply, some cells m…
VideoFree5 minutes
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Health and medicine: Gout and pseudogout
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: Atomic radius trends on periodic table
How atomic radius is defined, and trends across a period and down a group. Chemistry Did you know that everything is made out of chemicals?…
VideoFree10 minutes
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Chemistry: Common ion effect and buffers
The common ion effect describes the effect on equilibrium that occurs when a common ion (an ion that is already contained in the solution)…
VideoFree13 minutes
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High school biology: Biogeography: Where life lives
As our planet has coughed up new oceanic islands and ripped its land masses apart, organisms have found themselves stranded in new environm…
VideoFree2
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Health and medicine: Inflammatory bowel disease: Treatment
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree12 minutes
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Health and medicine: Visual cues
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree8 minutes