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: The nervous system
Hank begins a series of videos on organ systems with a look at the nervous system and all of the things that it is responsible for in the b…
VideoGratis12 minuten
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Biology: Dehydration synthesis or a condensation reaction
Dehydration synthesis (condensation reaction) between sugar molecules. Monosaccharides, disaccharides, and polysaccharides. Formation of ma…
VideoGratis10 minuten
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Organic chemistry: Alkene nomenclature
Rules for naming alkenes (molecules containing a carbon-carbon double bond). Organic chemistry Sal and Jay cover topics covered in college …
VideoGratis8 minuten
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Biology: DNA cloning and recombinant DNA
Introduction to DNA cloning Biology Life is beautiful! From atoms to cells, from genes to proteins, from populations to ecosystems, biology…
VideoGratis11 minuten
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Chemistry: 2015 AP Chemistry free response 6
Melting points of salts, and writing the net ionic equations for a basic salt solution. From 2015 AP Chemistry free response 6. Chemistry D…
VideoGratis13 minuten
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High school biology: Asexual and sexual reproduction
Binary fission, budding, mitosis, fragmentation, parthenogenesis and sexual reproduction. High school biology Types of reproduction Learn a…
VideoGratis9
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Chemistry: Visually understanding balancing chemical equations
Relating the balanced chemical equation to the structural formulas of the reactants and products. Chemistry Did you know that everything is…
VideoGratis5 minuten
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Chemistry: Change of state example
Specific heat capacity and enthalpy of vaporization example: calculating how much energy it takes to vaporize 1.00 kg of ethanol starting f…
VideoGratis8 minuten
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Organic chemistry: Reactions at the benzylic position
Free radical bromination, nucleophilic substitution, oxidation. Organic chemistry Sal and Jay cover topics covered in college organic chemi…
VideoGratis10 minuten
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Biology: New localities lead to new biodiversity
Biology Life is beautiful! From atoms to cells, from genes to proteins, from populations to ecosystems, biology is the study of the fascina…
VideoGratis11 minuten
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High school biology: Introduction to pH
Introduction to pH. Chart from Anatomy & Physiology, Connexions Web site. http://cnx.org/content/col11496/1.6/, Jun 19, 2013. user CC-BY Hi…
VideoGratis5
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Biology: Oxidative phosphorylation and the electron transport chain
How oxidation of co-enzymes like NADH can lead to the production of ATP through oxidative phosphorylation. Biology Life is beautiful! From …
VideoGratis16 minuten
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Organic chemistry: Stabilization of a conjugate base: resonance
How resonance affects the stability of a conjugate base Organic chemistry Sal and Jay cover topics covered in college organic chemistry cou…
VideoGratis7 minuten
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Biology: Lactic acid fermentation
Lactic acid fermentation. How organisms like lactobacillus convert pyruvic acid to lactic acid and oxidize NADH to NAD+ in the process. Bio…
VideoGratis11 minuten
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Biology: Photosynthesis
Overview of photosynthesis. What photosynthesis accomplishes, why it's important, and how the light-dependent and light-independent reactio…
VideoGratis14 minuten