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
Chemistry: Dissolution and precipitation
Defining solute, solvent, hydration, dissolution, precipitation, net ionic equation, and spectator ions. Looking at the molecular level int…
VideoFree10 minutes
check_box_outline_blank
Organic chemistry: Diels-Alder reaction
How to draw the products for a Diels-Alder reaction Organic chemistry Sal and Jay cover topics covered in college organic chemistry course.…
VideoFree8 minutes
check_box_outline_blank
Chemistry: Electron configuration for f block element Nd
Explains where f block fits in in the periodic table, and the n-2 rule. Introduces shorthand notation to get e configuration of Nd based on…
VideoFree6 minutes
check_box_outline_blank
Biology: Flow of energy and matter through ecosystems
Seeing how energy and matter flows and is recycled from primary producers (autotrophs) to primary, secondary and tertiary consumers. Biolog…
VideoFree10 minutes
check_box_outline_blank
Organic chemistry: Halogenation
The halogenation of benzene. Organic chemistry Sal and Jay cover topics covered in college organic chemistry course. Basic understanding of…
VideoFree9 minutes
check_box_outline_blank
Biology: Red blood cells
Oxygen uptake by hemoglobin in red blood cells. Biology Life is beautiful! From atoms to cells, from genes to proteins, from populations to…
VideoFree17 minutes
check_box_outline_blank
Biology: Anatomy of a skeletal muscle fiber
Understanding the structure of a muscle fiber. Biology Life is beautiful! From atoms to cells, from genes to proteins, from populations to …
VideoFree17 minutes
check_box_outline_blank
Biology: Silicon-based life
Could silicon play a role similar to carbon's in supporting life? Biology Life is beautiful! From atoms to cells, from genes to proteins, f…
VideoFree7 minutes
check_box_outline_blank
Biology: Noncompetitive inhibition
Seeing how a noncompetitive inhibitor can bind whether or not the substrate is bound, and vice versa. Biology Life is beautiful! From atoms…
VideoFree5 minutes
check_box_outline_blank
Cosmology and astronomy: Scale of the galaxy
Scale of the Galaxy Cosmology and astronomy It's a great, big universe out there. In this section of Khan Academy, you'll learn about the b…
VideoFree13 minutes
check_box_outline_blank
Cosmology and astronomy: Cepheid variables 1
Cepheid Variables 1 Cosmology and astronomy It's a great, big universe out there. In this section of Khan Academy, you'll learn about the b…
VideoFree9 minutes
check_box_outline_blank
Cosmology and astronomy: Refraction of seismic waves
Refraction of Seismic Waves Cosmology and astronomy It's a great, big universe out there. In this section of Khan Academy, you'll learn abo…
VideoFree9 minutes
check_box_outline_blank
Biology: Peptide bond formation
How amino acids form peptide bonds (peptide linkages) through a condensation reaction (dehydration synthesis). Biology Life is beautiful! F…
VideoFree8 minutes
check_box_outline_blank
High school biology: Organelles in eukaryotic cells
Overview of the nucleus, endoplasmic reticulum, Golgi bodies, vacuoles, mitochondria, chloroplasts and lysosomes. High school biology Eukar…
VideoFree10
check_box_outline_blank
Chemistry: Van der Waals forces
Van der Waals forces: London dispersion forces, dipole-dipole forces, and hydrogen bonding. Chemistry Did you know that everything is made …
VideoFree12 minutes