SciShow
What Do 'Natural' and 'Artificial' Flavors Really Mean?
What does it actually mean when your snack cake has "naturally flavored" on the package?
SciShow
Why Do These Trees Refuse to Touch?
There are a few forests out there where the trees seem to be especially... polite. Can scientists explain why these species give each other space?
Crash Course
Redox Reactions: Crash Course Chemistry
All the magic that we know is in the transfer of electrons. Reduction (gaining electrons) and oxidation (the loss of electrons) combine to form Redox chemistry, which contains the majority of chemical reactions. As electrons jump from...
TED-Ed
TED-ED: How aspirin was discovered - Krishna Sudhir
4000 years ago, the ancient Sumerians made a surprising discovery: if they scraped the bark off a particular kind of tree and ate it, their pain disappeared. Little did they know that what they'd found was destined to influence the...
SciShow
Nitroglycerin: Explosive Heart Medication
Imagine a substance so powerful that it could blow you to bits or save your life depending on how you used it. Well imagine no more: such a substance exists and you've probably heard of it.
SciShow
3 Chemistry Experiments That Changed the World
Chemistry is the study of matter - stuff, and how it interacts with other stuff. Even though chemistry doesn't make a lot of news these days, chemists are making discoveries that change lives all the time. If Hank had to narrow down all...
SciShow
Social Interaction and the 'Bliss Molecule'
This week on SciShow News, scientists found that social interaction triggers the production of the “bliss molecule” in mice. Plus, eating sugar is about more than just the calories.
Crash Course
More EAS - Electron Donating and Withdrawing Groups: Crash Course Organic Chemistry
In the previous episode we discussed what happens when we use electrophilic aromatic substitution to add a group to a benzene ring, but what happens when you try to add even more groups? Well, things get a little more complicated. In...
SciShow
The Hunt for the Highest Melting Point
What has the highest melting point known to us? Hank Green explains in this episode of SciShow.
TED-Ed
TED-Ed: The dangers of mixing drugs | Céline Valéry
Which of the following is risky behavior: a person taking cholesterol medicine with grapefruit juice? Or a person taking Acetaminophen before going out for drinks? Or a person on blood thinners who takes an aspirin? Turns out, all of...
Crash Course
Amines: Crash Course Organic Chemistry
Did you know that the fishier a fish smells, the longer it’s been out of the water? This is due to a chemical called trimethylamine, which is an amine, the class of organic compounds we’re discussing in this episode! Although they tend...
SciShow
4 Plants That Are Great for Humans
A quarter of all prescription drugs in the U.S. come from substances that are found only in plants. In this episode of SciShow, we take a look at four of these talented plants who make our lives better.
SciShow
Why Is Fluoride Good for Teeth?
If our teeth are made mostly of calcium, why do we use fluoride to keep them healthy? Quick Questions explains why, and how we finally figured it out.
SciShow
Studying Supernovas From the Bottom of the Ocean
Stars blowing up is a surprisingly common occurrence, but who would have thought to search the bottom of the ocean if you were trying to study them?!
Crash Course
Hydrocarbon Power! - Crash Course Chemistry
In which Hank introduces us to the world of Organic Chemistry and, more specifically, the power of hydrocarbon. He talks about the classifications of organic compounds, the structures & properties of alkanes, isomers, and naming an...
Bozeman Science
Molecular Solids
In this video Paul Andersen describes the structure and explains the properties of molecular solids. High intramolecular forces hold electrons and reduce conductivity, whereas low intermolecular forces decrease the melting point. ...
TED-Ed
TED-Ed: The Factory | Think Like A Coder, Ep 9 | Alex Rosenthal
This is episode 9 of our animated series "Think Like A Coder." This 10-episode narrative follows a girl, Ethic, and her robot companion, Hedge, as they attempt to save the world. The two embark on a quest to collect three artifacts and...
SciShow
If Theres Acid Rain Is There Basic Rain
You've probably heard of acid rain: rain that's more acidic than normal because of pollution in the atmosphere. But, if rain can become more acidic, shouldn't it also be able to become more basic?
TED-Ed
TED-ED: The accident that changed the world - Allison Ramsey and Mary Staicu
In 1928, scientist Alexander Fleming returned to his lab and found something unexpected: a colony of mold growing on a Petri dish he’d forgotten to place in his incubator. And around this colony of mold was a zone completely and...
Crash Course
The Creation of Chemistry - The Fundamental Laws: Crash Course Chemistry
Today's Crash Course Chemistry takes a historical perspective on the creation of the science, which didn't really exist until a super-smart, super-wealthy Frenchman put the puzzle pieces together - Hank tells the story of how we went...
Curated Video
How to find the Molecular Formula of a Chemical Compound
The molecular formula is the actual formula of a compound and can be found by comparing the mass of the molecular formula to the mass of the empirical formula to figure out how much bigger the molecular formula is compared to the...
Curated Video
Chemistry - Molecular and Empirical Formulas Explained - What's the difference?
The molecular formula of a compounds gives you the actual formula while the empirical formula gives you a simplified version of the molecular formula. Both formulas are important in chemistry and they both gives us valuable information....
Curated Video
Modified Opium Poppies: Promising Advances in Medical Treatment
Researchers in Australia have successfully modified opium poppies to produce a new compound called reticulane instead of morphine and codeine. This breakthrough could lead to significant advancements in medical treatment, particularly in...
Curated Video
Valency Revealed Group IV Elements' Complex Chemistry
Tetrahedron formation is a crucial aspect of the chemical bonding and molecular geometry of Group 4 elements like carbon, silicon, germanium, tin, and lead. The tetrahedral shape is formed by the arrangement of four substituents around a...