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: Newman projections
Newman Projections Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understanding of basic hig…
VideoFree14 minutes
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Organic chemistry: Ortho-para directors I
Regiochemistry. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understanding of basic high s…
VideoFree13 minutes
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High school biology: Introduction to lipids
Introduction to lipids like fats and phospholipids High school biology Biological macromolecules There's an old saying, "You are what you e…
VideoFree6
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Biology: Bacteria
Introduction to bacteria. Biology Life is beautiful! From atoms to cells, from genes to proteins, from populations to ecosystems, biology i…
VideoFree18 minutes
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Electrical engineering: Integral of product of cosines
Definite integral of the product of cosines. The integral of cos(mt) * cos(nt) = 0, except for the special case when m = n. When m = n, the…
VideoFree7 minutes
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Biology: Chromosomes, chromatids and chromatin
Overview of DNA transcription, translation, and replication during mitosis and meiosis. Learn about chromosomes, chromatids, and chromatin.…
VideoFree18 minutes
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Chemistry: Le Chatelier's principle: Worked example
A worked example using Le Chatelier's principle to predict how concentrations will shift for different perturbations. Example includes chan…
VideoFree8 minutes
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Electrical engineering: Bit-zeeeeeeeeeee (long version)
Bit-zee goes to school Electrical engineering Learn about electricity, circuit theory, and introductory electronics. We also have sections …
VideoFree2 minutes
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Electrical engineering: Component mounting holes
In this video we show you how and where to create the mounting holes in BIt-zee's Lexan base for the arduino, batteries, camera, on/off swi…
VideoFree6 minutes
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Chemistry: Buffers, the acid rain slayer
In this episode, Hank talks about how nutty our world is via Buffers! He defines buffers and their compositions, talks about carbonate buff…
VideoFree11 minutes
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Chemistry: 2015 AP Chemistry free response 1a
Analyzing reactions and cell potential of a metal-air cell. From 2015 AP Chemistry free response 1a. Chemistry Did you know that everything…
VideoFree12 minutes
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Biology: Krebs / citric acid cycle
Overview of the Krebs or citric acid cycle, which is a series of reactions that takes in acetyl CoA and produces carbon dioxide, NADH, FADH…
VideoFree18 minutes
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Biology: Introduction to amino acids
Amino acids and the central dogma of molecular biology. Amino and carboxyl groups, side chains, and zwitterions. Biology Life is beautiful!…
VideoFree10 minutes
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Cosmology and astronomy: Supermassive black holes
Supermassive Black Holes Cosmology and astronomy It's a great, big universe out there. In this section of Khan Academy, you'll learn about …
VideoFree9 minutes
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Cosmology and astronomy: Plate tectonics: Geological features of divergent plate boundaries
Plate Tectonics -- Geological Features of Divergent Plate Boundaries Cosmology and astronomy It's a great, big universe out there. In this …
VideoFree12 minutes