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: Membrane potentials - part 1
Find out how a cell that is permeable to one ion can become charged (either positive or negative) if there is permeability and a concentrat…
VideoFree8 minutes
check_box_outline_blank
Health and medicine: Why do some people but not others develop substance use problems?
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree4 minutes
check_box_outline_blank
Chemistry: Boiling point elevation and freezing point depression
Boiling point elevation is the raising of a solvent's boiling point due to the addition of a solute. Similarly, freezing point depression i…
VideoFree14 minutes
check_box_outline_blank
Chemistry: Another mass composition problem
Another exercise converting a mass composition to an empirical formula. Chemistry Did you know that everything is made out of chemicals? Ch…
VideoFree7 minutes
check_box_outline_blank
Organic chemistry: Acid-base definitions
Bronsted-Lowry and Arrhenius definitions of acids and bases. Organic chemistry Sal and Jay cover topics covered in college organic chemistr…
VideoFree9 minutes
check_box_outline_blank
Cosmology and astronomy: Cosmic background radiation 2
Cosmic Background Radiation 2 - Redshift of the Cosmic Background Radiation Cosmology and astronomy It's a great, big universe out there. I…
VideoFree10 minutes
check_box_outline_blank
Organic chemistry: Hydrohalogenation
Reaction of an alkene with a hydrogen halide, converting the double bond to a halogenated single bond. Organic chemistry Sal and Jay cover …
VideoFree12 minutes
check_box_outline_blank
Organic chemistry: Bromination of benzene
The bromination of benzene is an example of an electrophilic aromatic substitution reaction. In this reaction, the electrophile (bromine) f…
VideoFree13 minutes
check_box_outline_blank
Health and medicine: Cardiomyopathy signs and symptoms
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree13 minutes
check_box_outline_blank
Health and medicine: Psychosis
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…
VideoFree7 minutes
check_box_outline_blank
Organic chemistry: Condensed structures
How to go from Lewis dot structures to partially condensed structures to condensed structures Organic chemistry Sal and Jay cover topics co…
VideoFree7 minutes
check_box_outline_blank
Health and medicine: Einsenmenger coarctation of aorta
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree5 minutes
check_box_outline_blank
Organic chemistry: R,S system practice
How to assign a configuration to a chirality center using the R,S system Organic chemistry Sal and Jay cover topics covered in college orga…
VideoFree9 minutes
check_box_outline_blank
Health and medicine: Small intestine 3: Absorption
Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…
VideoFree5 minutes
check_box_outline_blank
Health and medicine: Neurovascular bundle
The neurovascular bundles located underneath the ribs are small collections of blood vessels (veins and arteries) and nerves which supply t…
VideoFree6 minutes