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 …
check_box_outline_blank
Health and medicine: Arteries, arterioles, venules, and veins
Learn the differences between these blood vessels! Rishi is a pediatric infectious disease physician and works at Khan Academy. These video…
VideoFree8 minutes
check_box_outline_blank
High school biology: Cartilage
High school biology The musculoskeletal system Topic: Science Learn about all the sciences, from physics, chemistry and biology, to cosmolo…
VideoFree4 minutes
check_box_outline_blank
Organic chemistry: Protection of alcohols
Use of protecting groups to "hide" alcohols while other groups in a molecule react. Organic chemistry Sal and Jay cover topics covered in c…
VideoFree8 minutes
check_box_outline_blank
Health and medicine: Osteoarthritis vs rheumatoid arthritis treatments
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree8 minutes
check_box_outline_blank
Chemistry: Shorthand notation for galvanic/voltaic cells
How to describe cell using shorthand notation. Chemistry Did you know that everything is made out of chemicals? Chemistry is the study of m…
VideoFree7 minutes
check_box_outline_blank
Biology: Ecology introduction
Ecology is the study of how living things interact with each other and their environment. This includes living things (biotic factors) and …
VideoFree10 minutes
check_box_outline_blank
Electrical engineering: Fourier Series introduction
The Fourier Series allows us to model any arbitrary periodic signal with a combination of sines and cosines. In this video sequence Sal wor…
VideoFree5 minutes
check_box_outline_blank
Organic chemistry: Ortho-para directors III
Moderate and weak activation, weak deactivation. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Ba…
VideoFree10 minutes
check_box_outline_blank
Health and medicine: Labor (parturition)
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree10 minutes
check_box_outline_blank
Organic chemistry: Aromatic heterocycles I
The aromaticity of heterocycles (rings containing one or more non-carbon atoms). Organic chemistry Sal and Jay cover topics covered in coll…
VideoFree12 minutes
check_box_outline_blank
Health and medicine: Units for common medical lab values
Figure out how to interpret the units in common medical labs including the CBC, Chem 10, and LFTs. Rishi is a pediatric infectious disease …
VideoFree11 minutes
check_box_outline_blank
Health and medicine: Lung cancer metastasis
Metastasis is the spread of cancer cells from one area of the body (such as an organ) to another. As cancerous cells multiply, some cells m…
VideoFree5 minutes
check_box_outline_blank
Health and medicine: Gout and pseudogout
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree8 minutes
check_box_outline_blank
Chemistry: Atomic radius trends on periodic table
How atomic radius is defined, and trends across a period and down a group. Chemistry Did you know that everything is made out of chemicals?…
VideoFree10 minutes
check_box_outline_blank
Chemistry: Common ion effect and buffers
The common ion effect describes the effect on equilibrium that occurs when a common ion (an ion that is already contained in the solution)…
VideoFree13 minutes