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: Diabetic retinopathy
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree13 minutes
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Health and medicine: Pacinian's Corpuscle and Merkel's Disk
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree7 minutes
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Class 11 Physics (India) - Hindi: Race cars with constant speed around curve (Hindi)
When acceleration could involve a change in direction and not speed. Class 11 Physics (India) - Hindi To help students who prefer to learn …
VideoFree6
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Class 11 Physics (India): Newton's third law of motion
Every action has an equal and opposite reaction Class 11 Physics (India) Let's learn, practice, and master topics of class 11 physics (NCER…
VideoFree8 minutes
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Class 11 Physics (India) - Hindi: Two masses hanging from a pulley (Hindi)
In this video Ram explains how to find the acceleration of two masses hanging from a pulley (using the easy method). Class 11 Physics (Indi…
VideoFree8
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Chemistry: Drawing dot structures
Guidelines for drawing Lewis dot structures. Chemistry Did you know that everything is made out of chemicals? Chemistry is the study of mat…
VideoFree15 minutes
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Organic chemistry: Nomenclature and preparation of epoxides
Naming of epoxides (cyclic ethers with three atoms in the ring). Preparation of epoxides from alkenes. Organic chemistry Sal and Jay cover …
VideoFree9 minutes
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Chemistry: Molecular mass and molecular weight
Calculating the molecular mass and molecular weight of water. Chemistry Did you know that everything is made out of chemicals? Chemistry is…
VideoFree7 minutes
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Chemistry: Introduction to reaction quotient Qc
Introduction to the reaction quotient Qc, and comparing the reaction quotient with the equilibrium constant to predict how concentrations w…
VideoFree8 minutes
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Chemistry: VSEPR for 5 electron clouds
VSEPR for molecules with five electron clouds including examples for trigonal bipyramidal and seesaw-shaped molecules. Chemistry Did you kn…
VideoFree15 minutes
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Organic chemistry: Ring opening reactions of epoxides: Acid-catalyzed
How acid-catalyzed reactions can open the highly strained ring of an epoxide. Organic chemistry Sal and Jay cover topics covered in college…
VideoFree9 minutes
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Physics: Projectile motion (part 4)
Solving for time when you are given the change in distance, acceleration, and initial velocity Physics Learn about the basic principles tha…
VideoFree9 minutes
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Class 12 Physics (India): Introduction to magnetism
An introduction to magnetism Class 12 Physics (India) It is now time to dive deeper into the world of physics with topics from class 12 (NC…
VideoFree11 minutes
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Class 11 Physics (India) - Hindi: Calculating average velocity or speed (Hindi)
Although speed and velocity are often words used interchangeably, in physics, they are distinct concepts. Speed is calculated by dividing t…
VideoFree9
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Class 11 Physics (India): Adding vectors in magnitude & direction form (1 of 2)
Watch Sal add two vectors given in magnitude and direction form by breaking them down into components first. Class 11 Physics (India) Let's…
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