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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Biology: Speciation
Learn about speciation, including allopatric and sympatric speciation and mechanisms of reproductive isolation. Biology Life is beautiful! …
VideoFree11 minutes
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Health and medicine: Immune reconstitution inflammatory syndrome (IRIS) in AIDS
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: Spontaneity and redox reactions
Using standard cell potential to predict whether a redox reaction will be spontaneous under standard conditions. Chemistry Did you know tha…
VideoFree12 minutes
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Chemistry: Worked example: Atomic weight calculation
How to calculate atomic weight from atomic mass and percent abundance of carbon isotopes. Chemistry Did you know that everything is made ou…
VideoFree4 minutes
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Organic chemistry: Entgegen-Zusammen naming scheme for alkenes examples
Entgegen-Zusammen Naming Scheme for Alkenes Examples Organic chemistry Sal and Jay cover topics covered in college organic chemistry course…
VideoFree6 minutes
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Health and medicine: Treating depression with antidepressants
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree11 minutes
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Health and medicine: Antiviral drugs for the flu
Rishi is a pediatric infectious disease physician and works at Khan Academy. These videos do not provide medical advice and are for informa…
VideoFree14 minutes
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Health and medicine: Ischemic and hemorrhagic strokes
Basics of strokes Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering heal…
VideoFree6 minutes
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Chemistry: Naming ions and ionic compounds
Naming cations, anions, and simple ionic compounds such as potassium chloride Chemistry Did you know that everything is made out of chemica…
VideoFree4 minutes
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Health and medicine: Control of the GI tract
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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Chemistry: Balancing chemical equations
How to balance a chemical reaction by making sure you have the same number of atoms of each element on both sides. Chemistry Did you know t…
VideoFree5 minutes
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Health and medicine: Pulmonary hypertension diagnosis Swan Ganz catheterization
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree3 minutes
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Organic chemistry: Naming simple alkanes
Naming simple linear and cyclic alkanes Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic under…
VideoFree9 minutes
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Chemistry: Acid base titration example
Using acid-base titration to find mass of oxalic acid, a weak acid. Chemistry Did you know that everything is made out of chemicals? Chemis…
VideoFree13 minutes
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Chemistry: Oxidation state trends in periodic table
Trends in common oxidation states for main group elements. Chemistry Did you know that everything is made out of chemicals? Chemistry is th…
VideoFree9 minutes