Khan Academy
Chinese Central Bank Buying Treasuries
In the first several minutes of this clip, a review of the hypothetical China-U.S. trade scenario Sal mapped out in previous videos. Then, he begins to outline further how the Yuan can resist appreciation because of interference by the...
Khan Academy
China Keeps Peg but Diversifies Holdings
By examining data from the U.S. treasury, Sal shows scholars the large discrepancy between US exports to China and US imports from China in 2009. He also examines foreign-owned assets in the United States, pointing out China's position...
Khan Academy
China Buys US bonds, Money, Banking and Central Banks, Finance and Capital Markets
Go further into depth with the China-United States trade scenario, this time investigating what the Chinese government does with the dollars they collect. Sal reminds scholars why the Chinese Central Bank prints Yuan to purchase dollars...
Khan Academy
Chapter 7: Bankruptcy Liquidation, Stocks and Bonds, Finance & Capital Markets
In the first of two videos on bankruptcy, Sal explains the liquidation process and its effects on investors. He reviews ways a company raises capital and presents a hypothetical issue: a company goes bankrupt and doesn't have the assets...
Khan Academy
An IPO, Stocks and Bonds, Finance and Capital Markets
Once Sal's hypothetical company has gone through two rounds of seed investor financing, competition drives it to raise significantly more cash. Learners investigate the initial public offer process, starting with a visit to an investment...
Khan Academy
American-Chinese Debt Loop
After watching the videos on foreign exchange and trade, your scholars may be wondering how exactly American debt purchasing has led to lower interest rates. Here's their answer. Sal reviews the Chinese investment cycle in US treasuries,...
Khan Academy
Common and Systematic Nameing: So-, Sec-, and Tert- Prefixes, Organic chemistry
Using multiple examples, Sal follows the naming conventions of complex alkanes. He explains how common and systematic nomenclature identifies the bonding carbon of the branch chain. Sal starts to complicate things by elaborating on the...
Khan Academy
Scale of the Galaxy, Scale of the Universe, Cosmology and Astronomy
The fourth of five videos explores the scale and relative distances between planets, stars, and other galactic bodies.
Khan Academy
Sn1 Reactions
A video on Sn1 reactions diagram water and 2-Bromo-2-Methylpropane. Sal discusses the possible behaviors of the valence electrons. He reviews the concepts of nucleophilicity and electronegativity and the speed of each reaction stage.
Khan Academy
Supernova (Supernovae), Stars, Black Holes and Galaxies, Cosmology and Astronomy
How does a massive star go supernova? This video is a follow-up to the Khan Academy video on the life cycle of massive stars, explaining the chemical collapse that results in a supernova. Sal explains the process with neutron stars and...
Khan Academy
Compositional and Mechanical Layers of the Earth, Cosmology and Astronomy
Sal details the chemical and mechanical composition of the Earth's crust, mantle, and core layers—a substantial addition to your geology or earth science lecture.
Khan Academy
Cosmic Background Radiation, Scale of the Universe, Cosmology and Astronomy
An informative video explains the density of particles immediately after the Big Bang, as well as the concept that whenever a particle was released, it would merge with another particle. Sal develops the concept of being able to receive...
Khan Academy
Sn2 Reactions
Bromomethane and hydroxide are the components used in these examples. Sal demonstrates how the rate-determining steps in these Nucleophilic Substitutions involve both reactants. The way Sal attempts humor with the technical term of...
Khan Academy
Newman Projections 2
Visualizing long chains of hydrocarbons is easier with this video, which utilizes the Newman projection method for diagramming. Using ethane and butane as examples, Sal demonstrates how to label the multiple CH3 attachments according to...
Khan Academy
Hubble's Law, Scale of the Universe, Cosmology and Astronomy
Sal defines and explains the premise of Hubble's Law and then uses trigonometry to show the relationship between velocity and distance. He explains that as the universe expands, objects get farther away from each other; as objects move...
Khan Academy
R,S (Cahn-Ingold-Prelog) Naming System Example 2, Organic chemistry
Repetition of the naming rules and numbering of carbons after diagramming a molecule will help your aspiring chemists. The video builds upon previous examples of naming enantiomers and stereoisomers.
Khan Academy
Naming Alkanes with Alkyl Groups, Organic Chemistry
Sal continues to work through examples of naming carbon chains. He is very clear and logical, so your class should understand this clearly. The video introduces branching and identifying where the additional group is located. Note: A...
Khan Academy
Big Bang Introduction, Scale of the Universe, Cosmology and Astronomy
Sal explains the Big Bang and the spatial concepts of infinity versus a 'sphere' of expanding matter in detail.
Khan Academy
Cahn-Ingold-Prelog System for Naming Enantiomers, Organic Chemistry
1-bromo-1-fluoroethane is the first example of stereoisomers that exhibit different chemical properties and polarize light in distinct ways. An informative video focuses on how to differentiate between enantiomers using the...
Khan Academy
Four Fundamental Forces, Scale of the Universe, Cosmology and Astronomy
Fundamental interactions are the non-contact ways that elementary particles interact. Sal describes electromagnetism, strong interaction, and weak interaction as being mediated by the exchange of gauge bosons between particles.
Khan Academy
Earth Formation, Life on Earth and in the Universe, Cosmology and Astronomy
How was our solar system and Earth formed? Sal hypothesizes that a Supernova was most likely the catalyst that spawned our sun and, consequently, our solar system. He thoroughly explains the formation of the moon and the Earth using a...
Khan Academy
Organic Chemistry Naming Examples 4, Organic Chemistry
Sal continues to work through examples of more complicated carbon chains. He presents a complicated name and attempts to work through it logically, drawing the structure. His humor makes these strategies fun and easy to watch.
Khan Academy
Sn2 Stereochemistry
A short video introduces class members to Sn1 and Sn2 reactions. The study of the stereochemistry of the end product ensures that young chemists can learn not only about the reaction, but can also review the handedness,...
Khan Academy
Supermassive Black Holes, Stars, Black Holes and Galaxies, Cosmology and Astronomy
Following his video on black holes, a video on supermassive black holes explains what happens when a supermassive stellar object collapses. The video primarily explores the reasons we don't see intermediate black holes, as they can be...