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: Embryonic stem cells
An overview of early development of a zygote to an embryo. Embryonic and somatic stem cells. Biology Life is beautiful! From atoms to cells…
VideoFree20 minutes
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Cosmology and astronomy: Structure of the earth
Structure of the Earth - crust, mantle, core Cosmology and astronomy It's a great, big universe out there. In this section of Khan Academy,…
VideoFree10 minutes
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Chemistry: Plotting data for a first-order reaction
Example of graphing first-order rate data to see a linear relationship, and calculating rate constant k from the slope. Chemistry Did you k…
VideoFree9 minutes
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Cosmology and astronomy: Black holes
Black Holes Cosmology and astronomy It's a great, big universe out there. In this section of Khan Academy, you'll learn about the brain-ben…
VideoFree10 minutes
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Organic chemistry: Aromatic stability II
How the geometry of a molecule plays into aromaticity. Why cyclooctatetraene is not aromatic like benzene. Organic chemistry Sal and Jay co…
VideoFree10 minutes
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Organic chemistry: Bicyclic compounds
How to name bicyclic compounds. Numbering the chain and Identifying bridgehead carbons. Organic chemistry Sal and Jay cover topics covered …
VideoFree11 minutes
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Cosmology and astronomy: Plate tectonics: Geological features of convergent plate boundaries
Geological features of Convergent Plate Boundaries Cosmology and astronomy It's a great, big universe out there. In this section of Khan Ac…
VideoFree6 minutes
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Biology: Genes and biodiversity
How does the gene pool contribute to biodiversity? Learn how genetic diversity within populations contributes to species survival. Video by…
VideoFree7 minutes
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High school biology: Introduction to cilia, flagella and pseudopodia
Introduction to cilia, flagella and pseudopodia High school biology Basic cell structures We'll learn about the complex and beautiful struc…
VideoFree4
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Biology: The history of life on earth
Hank discusses the history of life on Earth (including major events such as oxygenation of the atmosphere and mass extinctions). Biology Li…
VideoFree13 minutes
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High school biology: Introduction to nucleic acids and nucleotides
Introduction to nucleic acids (e.g., DNA and RNA) and nucleotides High school biology Biological macromolecules There's an old saying, "You…
VideoFree6
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Cosmology and astronomy: Lifecycle of massive stars
Lifecycle of Massive Stars Cosmology and astronomy It's a great, big universe out there. In this section of Khan Academy, you'll learn abou…
VideoFree7 minutes
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Biology: Speciation: Of ligers & men
Hank explains speciation - the evolutionary process by which new biological species arise - in terms of finches, ligers, mules, and dogs. B…
VideoFree10 minutes
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Biology: Cellular specialization (differentiation)
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree9 minutes
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High school biology: Pedigree for determining probability of exhibiting sex linked recessive trait
Pedigree for determining probability of exhibiting sex linked recessive trait High school biology Pedigrees Topic: Science Learn about all …
VideoFree5