Khan Academy: 2757 producten
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: Sex-linked traits
Sex-linked traits are associated with genes found on sex chromosomes. In humans, the sex chromosomes are X and Y. Because the X-chromosome …
VideoGratis14 minuten
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Organic chemistry: Naming cubane
Systematic naming of cubane. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understanding of…
VideoGratis6 minuten
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Chemistry: Calorimetry and enthalpy introduction
Today's episode dives into the HOW of enthalpy. How we calculate it, and how we determine it experimentally...even if our determinations he…
VideoGratis11 minuten
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Biology: 2015 AP Biology free response 6
Fixing a declining snake population. Biology Life is beautiful! From atoms to cells, from genes to proteins, from populations to ecosystems…
VideoGratis6 minuten
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Biology: The scientific method
How the scientific method is used to ask questions and test explanations. Biology Life is beautiful! From atoms to cells, from genes to pro…
VideoGratis12 minuten
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High school biology: Introduction to the cell
Introduction to the cell High school biology Basic cell structures We'll learn about the complex and beautiful structures you can find insi…
VideoGratis6
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Chemistry: Buffers, the acid rain slayer
In this episode, Hank talks about how nutty our world is via Buffers! He defines buffers and their compositions, talks about carbonate buff…
VideoGratis11 minuten
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Chemistry: 2015 AP Chemistry free response 1a
Analyzing reactions and cell potential of a metal-air cell. From 2015 AP Chemistry free response 1a. Chemistry Did you know that everything…
VideoGratis12 minuten
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Biology: Krebs / citric acid cycle
Overview of the Krebs or citric acid cycle, which is a series of reactions that takes in acetyl CoA and produces carbon dioxide, NADH, FADH…
VideoGratis18 minuten
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Organic chemistry: Ka and pKa review
A short review of Ka and pKa for students taking organic chemistry Organic chemistry Sal and Jay cover topics covered in college organic ch…
VideoGratis3 minuten
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Chemistry: Reactions in equilibrium
Equilibrium reactions and constants. Chemistry Did you know that everything is made out of chemicals? Chemistry is the study of matter: its…
VideoGratis15 minuten
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Biology: Biology overview
Overview of biology, the study of life. Biology Life is beautiful! From atoms to cells, from genes to proteins, from populations to ecosyst…
VideoGratis5 minuten
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Biology: 2015 AP Biology free response 7
Olfactory neurons. Biology Life is beautiful! From atoms to cells, from genes to proteins, from populations to ecosystems, biology is the s…
VideoGratis9 minuten
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Organic chemistry: Elimination vs substitution: secondary substrate
Examining which types of reactions secondary alkyl halides can undergo. Organic chemistry Sal and Jay cover topics covered in college organ…
VideoGratis12 minuten
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Organic chemistry: Chemical shift
The formula for calculating chemical shift based on a TMS reference signal and spectrophotometer frequency. Organic chemistry Sal and Jay c…
VideoGratis6 minuten