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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Health and medicine: Blue Cross and Blue Shield
Sal and Dr. Baker talk a bit about Blue Cross and Blue Shield Health and medicine The medical world can be a confusing place. Patients, the…
VideoFree10 minutes
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Biology: The plants & the bees: Plant reproduction
Hank gets into the dirty details about vascular plant reproduction: they use the basic alternation of generations developed by nonvascular …
VideoFree10 minutes
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Biology: Fluid mosaic model of cell membranes
The fluid mosaic model describes the cell membrane as a tapestry of several types of molecules (phospholipids, cholesterols, and proteins) …
VideoFree9 minutes
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High school biology: Pedigrees
An introduction to reading and analyzing pedigrees. High school biology Pedigrees Topic: Science Learn about all the sciences, from physics…
VideoFree6
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Chemistry: Balancing redox reactions in acid
How to balance a redox reaction in acid. Chemistry Did you know that everything is made out of chemicals? Chemistry is the study of matter:…
VideoFree12 minutes
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Chemistry: Keq derivation intuition
A more concrete attempt at showing how the probabilities of molecules reacting is related to their concentration. Not necessary to keep pro…
VideoFree16 minutes
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Health and medicine: Where do our nails and hair come from?
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: Comparing formal charges to oxidation states
How formal charges and oxidation states are both ways of counting electrons Organic chemistry Sal and Jay cover topics covered in college o…
VideoFree6 minutes
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Health and medicine: Heart failure diagnosis
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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Health and medicine: Cystic fibrosis diagnosis
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree5 minutes
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Organic chemistry: Identifying chirality centers
How to determine which atoms in a molecule are chirality centers. Organic chemistry Sal and Jay cover topics covered in college organic che…
VideoFree8 minutes
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Health and medicine: Skeletal endocrine control
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: Enthalpy
Understanding why enthalpy can be viewed as "heat content" in a constant pressure system. Chemistry Did you know that everything is made ou…
VideoFree15 minutes
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Organic chemistry: Conformational analysis of ethane
How to analyze the staggered and eclipsed conformations of ethane Organic chemistry Sal and Jay cover topics covered in college organic che…
VideoFree6 minutes
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Health and medicine: Changing the heart rate - chronotropic effect
Find out exactly how your autonomic nervous system has a chronotropic effect (i.e. timing) that changes speed of your heartbeat! Rishi is a…
VideoFree12 minutes