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: Synthesis of alcohols using Grignard reagents II
Working backwards from a particular alcohol and determining what Grignard reagent you would need to synthesize it. Organic chemistry Sal an…
VideoFree12 minutes
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Organic chemistry: Meta directors II
Inductive and resonance effects. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understandin…
VideoFree8 minutes
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Health and medicine: Low salt diet
Figure out the difference between "salt" and "sodium" and how much salt is recommended on a low sodium diet. Rishi is a pediatric infectiou…
VideoFree7 minutes
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Health and medicine: Wegener’s granulomatosis and microscopic polyangiitis
Wegener’s granulomatosis (also known as granulomatosis with polyangiitis) is a type of vasculitis that affects small and medium blood vesse…
VideoFree9 minutes
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Health and medicine: Anaphylactic shock
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree9 minutes
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Organic chemistry: Alkyne acidity and alkylation
How terminal alkynes can act as weak acids and react with alkyl halides, leading to their alkylation. Organic chemistry Sal and Jay cover t…
VideoFree8 minutes
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Health and medicine: Drug-resistant TB
Learn the different types of drug-resistant TB These videos do not provide medical advice and are for informational purposes only. The vide…
VideoFree9 minutes
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Organic chemistry: Stereoisomers, enantiomers, diastereomers, constitutional isomers and meso compounds
Stereoisomers, Enantiomers, Diastereomers, Constitutional Isomers and Meso Compounds Organic chemistry Sal and Jay cover topics covered in …
VideoFree14 minutes
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Health and medicine: Causes of myocarditis
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree9 minutes
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Health and medicine: Hypoxic pulmonary vasoconstriction
Watch how blood gets diverted away from alveoli with low oxygen levels. Rishi is a pediatric infectious disease physician and works at Khan…
VideoFree9 minutes
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Health and medicine: Primary hypertension
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree6 minutes
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Biology: Human activities that threaten biodiversity
Human activities that cause a loss of biodiversity. Video by California Academy of Sciences. Biology Life is beautiful! From atoms to cells…
VideoFree13 minutes
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Biology: Ecosystem services
Describing and quantifying the benefits that healthy ecosystems provide to humans. Video by California Academy of Sciences. Biology Life is…
VideoFree9 minutes
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Organic chemistry: Stabilization of a conjugate base: hybridization
How increased s character in a hybrid orbital stabilizes the conjugate base Organic chemistry Sal and Jay cover topics covered in college o…
VideoFree6 minutes
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Biology: The digestive system
Hank takes us through the bowels of the human digestive system and explains why it's all about surface area. Biology Life is beautiful! Fro…
VideoFree11 minutes