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: Organic chemistry naming examples 2
Organic chemistry naming examples involving branching and rings. Organic chemistry Sal and Jay cover topics covered in college organic chem…
VideoFree10 minutes
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Organic chemistry: Absorption in the visible region
Physical basis of our perception of color. Example of beta-carotene, the molecule that makes carrots orange. Organic chemistry Sal and Jay …
VideoFree5 minutes
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Biology: How does climate change affect biodiversity?
Effects of climate change on biodiversity. Video by California Academy of Sciences. Biology Life is beautiful! From atoms to cells, from ge…
VideoFree12 minutes
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Organic chemistry: Sn1 mechanism: stereochemistry
Stereochemistry of an Sn1 reaction and how it relates to the Sn1 mechanism. Organic chemistry Sal and Jay cover topics covered in college o…
VideoFree6 minutes
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Biology: Oxidation and reduction review from biological point-of-view
Taking a look at oxidation and reduction in a biological context. Biology Life is beautiful! From atoms to cells, from genes to proteins, f…
VideoFree13 minutes
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Biology: Scale of cells
Thinking about how large a cell is compared to viruses, proteins and simple molecules. Biology Life is beautiful! From atoms to cells, from…
VideoFree7 minutes
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Organic chemistry: Relative stability of amides, esters, anhydrides, and acyl chlorides
Relative stability of amides, esters, anhydrides, and acyl chlorides. Organic chemistry Sal and Jay cover topics covered in college organic…
VideoFree11 minutes
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Biology: Introduction to energy
Energy is defined as the ability to do work. Energy can be found in many things and can take different forms. For example, kinetic energy i…
VideoFree11 minutes
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Organic chemistry: IR signals for carbonyl compounds
The IR signals of various carbonyl-containing compounds. How differences in wavenumber relate to differences in compound structure. Organic…
VideoFree13 minutes
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Biology: The nitrogen cycle
How nitrogen is recycled in our biosphere in the nitrogen cycle, including nitrogen fixation. Biology Life is beautiful! From atoms to cell…
VideoFree6 minutes
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High school biology: Example punnet square for sex-linked recessive trait
Example punnet square for sex-linked recessive trait High school biology Sex linkage Topic: Science Learn about all the sciences, from phys…
VideoFree5
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Chemistry: Titration curves and acid-base indicators
Choosing the best indicator for different titrations depending on the pH at the equivalence point. Chemistry Did you know that everything i…
VideoFree7 minutes
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Biology: Introduction to metabolism: Anabolism and catabolism
Overview of metabolism, anabolism, and catabolism. Biology Life is beautiful! From atoms to cells, from genes to proteins, from populations…
VideoFree10 minutes
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Organic chemistry: Dot structures II: Multiple bonds
How to draw double and triple bonds using dots to represent valence electrons. Organic chemistry Sal and Jay cover topics covered in colleg…
VideoFree6 minutes
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Biology: Hemoglobin
Hemoglobin and its role in the circulatory system. Biology Life is beautiful! From atoms to cells, from genes to proteins, from populations…
VideoFree15 minutes