PBS
Why Sour May Be The Oldest Taste
While sour taste's original purpose was to warn vertebrates of danger, in a few animal groups, including us, its role has reversed. The taste of danger became something it was dangerous for us to avoid.
SciShow
Why Sexy Is Sexy
Hank delves into the scientific reasons behind why we are attracted to the people we're attracted to. It's complicated.
TED-Ed
TED-ED: What is the shape of a molecule? - George Zaidan and Charles Morton
A molecule is nearly all empty space, apart from the extremely dense nuclei of its atoms and the clouds of electrons that bond them together. When that molecule forms, it arranges itself to maximize attraction of opposite charges and...
SciShow
Why Sexy Is Sexy
Hank delves into the scientific reasons behind why we are attracted to the people we're attracted to. It's complicated.
Bozeman Science
Ionic Bonding
In this video Paul Andersen explains how ionic solids form when cations and anions are attracted. When atoms lose or gain electrons they form ions. The strength of the attraction between ions is based on the amount of charge and the...
TED Talks
TED: The Jill and Julia Show | Jill Sobule + Julia Sweeney
Two TED favorites, Jill Sobule and Julia Sweeney, team up for a delightful set that mixes witty songwriting with a little bit of social commentary.
TED-Ed
TED-ED: How atoms bond - George Zaidan and Charles Morton
Atoms can (and do) bond constantly; it's how they form molecules. Sometimes, in an atomic tug-of-war, one atom pulls electrons from another, forming an ionic bond. Atoms can also play nicely and share electrons in a covalent bond. From...
SciShow
Snakes Use Their Spongy Mouths to Drink
Snakes don’t have lips, they can't lap up water, and they don’t grab mouthfuls of water and tip their heads back to swallow, so how do they drink? Turns out, some snakes have sponge-mouths that literally soak up water!
SciShow
Gravitation: The Four Fundamental Forces of Physics #3
Hank continues our series on the four fundamental forces of physics with a description of gravitation -the interaction by which physical bodies attract with a force proportional to that of their masses, and which is responsible for...
Crash Course Kids
Down to Earth
In this episode of Crash Course Kids, Sabrina talks about why things on the bottom of the Earth, don't just fall off into space. Plus... PENGUINS! This first series is based on 5th grade science. We're super excited and hope you enjoy...
SciShow
Misattribution: How We Mistake Fear for Love
Some emotions can feel so similar that you might mix them up and pick the wrong emotion.
TED-Ed
TED-ED: The science of attraction - Dawn Maslar
Romantic chemistry is all about warm, gooey feelings that gush from the deepest depths of the heart-right? Not quite. Actually, the real boss behind attraction is your brain, which runs through a very quick, very complex series of...
SciShow
Why Do Atoms Bond?
SciShow explains what makes atoms bond (and what makes them sometimes seem promiscuous).
Crash Course
Liquids: Crash Course Chemistry
In this episode of Crash Course Chemistry, Hank gives you the low down on things like London Dispersion Forces, Hydrogen Bonds, Cohesion, Adhesion, Viscosity, Capillary Action, Surface Tension, and why liquids are just... WEIRD!
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TED-Ed
TED-Ed: How to think about gravity - Jon Bergmann
Did you know that when you fall down, the earth falls up to meet you? Explore the counterintuitive equation that describes gravity.
Bozeman Science
Bond Length and Bond Energy
In this video Paul Andersen explains how the bond length and bond energy are calculated using an energy distance graph. The strength of the bond is determined by the charges in the constituent atoms. As the charge increases the bond...
TED-Ed
TED-Ed: The chemistry of cold packs - John Pollard
If you stick water in the freezer, it will take a few hours to freeze into ice. How is it, then, that cold packs go from room temperature to near freezing in mere seconds? John Pollard details the chemistry of the cold pack, shedding...
Bozeman Science
Positive and Negative Charge
In this video Paul Andersen explains how all objects contain positive and negative charge. Neutral objects contain an equal amount of positive and negative charges. Charged objects have more positive or negative charges. Like charges...
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.
Bozeman Science
Conservation of Electric Charge
In this video Paul Andersen explains how the conservation of charge applies to objects in a system. When a charged object induces charge or conducts charge to a neutral object the net total of charge will not change. Grounding allows...
SciShow
How Much Does Your ‘Type’ Really Matter
Everybody has their own preferences for ideal romantic partners. But what affects you when you decide your “type," and do those types even matter?
Bozeman Science
Vector Field
In this video Paul Andersen explains how a vector field shows the distribution of vector quantities. In AP Physics 1 student should be able to map and understand gravitational vector fields. In AP Physics 2 students should be able to map...
SciShow
3 Physics Experiments that Changed the World
Physics investigates why the universe behaves the way that it does, and today, Hank tells us about the three physics experiments that he thinks were the most awesome at helping us understand how the universe works.
Bozeman Science
Intermolecular Forces
In this video Paul Andersen explains how intermolecular forces differ from intramolecular forces. He then explains how differences in these forces account for different properties in solid, liquids and gases. Some of these properties...