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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Chemistry: Dipole moment
Predicting the molecular dipole moment based on the molecular geometry. Chemistry Did you know that everything is made out of chemicals? Ch…
VideoFree9 minutes
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Health and medicine: Colon, rectum, and anus
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree10 minutes
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Cosmology and astronomy: Scale of earth and sun
Scale of Earth and Sun Cosmology and astronomy It's a great, big universe out there. In this section of Khan Academy, you'll learn about th…
VideoFree10 minutes
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Health and medicine: Cyanotic heart diseases - Diagnosis and treatment
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree4 minutes
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Organic chemistry: Newman projections 2
Newman Projections 2 Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understanding of basic h…
VideoFree11 minutes
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Biology: Trp operon
The trp operon is a well-studied operon when it comes to gene regulation. It is involved in the biosynthesis of the amino acid tryptophan. …
VideoFree7 minutes
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Organic chemistry: Preparation of alcohols using NaBH4
How to prepare a primary or secondary alcohol from a ketone or aldehyde using sodium borohydride. Organic chemistry Sal and Jay cover topic…
VideoFree13 minutes
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Organic chemistry: Meta directors I
Regiochemistry. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understanding of basic high s…
VideoFree11 minutes
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Health and medicine: Secondary hypertension
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree6 minutes
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Biology: Overview of cellular respiration
Overview: glycolysis, pyruvate oxidation, the citric acid cycle (Krebs cycle), and oxidative phosphorylation. Biology Life is beautiful! Fr…
VideoFree13 minutes
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Biology: Why heat increases entropy
Why heat increases entropy—even though some of it can do work! Biology Life is beautiful! From atoms to cells, from genes to proteins, from…
VideoFree7 minutes
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Health and medicine: Layers of the heart
Take a closer look at the heart, explore some of its interesting features and get to know the three layers that make up the heart. Rishi is…
VideoFree12 minutes
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Cosmology and astronomy: Development of agriculture and writing
The Paleolithic and Neolithic eras of the Stone Age. Cosmology and astronomy It's a great, big universe out there. In this section of Khan …
VideoFree13 minutes
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Organic chemistry: Nomenclature and properties of esters
How to name esters and how to analyze their physical properties. Organic chemistry Sal and Jay cover topics covered in college organic chem…
VideoFree11 minutes
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High school biology: Anatomy of a skeletal muscle cell
Understanding the structure of a skeletal muscle cell. High school biology The musculoskeletal system Topic: Science Learn about all the sc…
VideoFree13 minutes