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: 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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Electrical engineering: Multiplying by j is rotation
Successive powers of the imaginary unit j correspond to a rotation. Electrical engineering Learn about electricity, circuit theory, and int…
VideoFree6 minutes
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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
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Chemistry: Buffer solution pH calculations
Example of calculating the pH of a buffer solution using the Henderson-Hasselbalch equation, including the pH of the buffer solution after …
VideoFree12 minutes
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Organic chemistry: Organic chemistry naming examples 3
Organic chemistry naming examples 3, containing branching and cycles. Organic chemistry Sal and Jay cover topics covered in college organic…
VideoFree8 minutes
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Organic chemistry: Preparation of acid anhydrides
How to prepare acid anhydrides from carboxylic acids. Organic chemistry Sal and Jay cover topics covered in college organic chemistry cours…
VideoFree7 minutes
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Health and medicine: What is hypertension
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree5 minutes
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Organic chemistry: Common and systematic naming: iso-, sec-, and tert- prefixes
Common and systematic naming - Iso, Sec and Tert prefixes Organic chemistry Sal and Jay cover topics covered in college organic chemistry c…
VideoFree14 minutes