MinuteEarth
400 Parts in a Million - The World's Biggest Experiment
400 Parts in a Million - The World's Biggest Experiment
MinuteEarth
Why The Ocean Needs Salt
Our oceans don’t technically contain salt, but the ions salt is made of play a critical role in planet-wide processes that make the Earth habitable.
SciShow
Do Fish Drink Water?
They live in the water, but do they actually drink it? Turns out, some fish actually do! Learn all about how different kinds of fish get the fresh water that they need to survive in this new episode of SciShow!
SciShow
If There's 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?
SciShow
How Honey Fights Deadly Bacteria
Believe it or not, that cute bear bottle has serious bacteria fighting power—but how? Join Hank Green for a new episode of SciShow all about the amazing properties of honey!
SciShow
Where's My Bloodless Blood Sugar Monitor
There are about 450 million diabetics around the world, and while we do already have a reliable way of measuring blood sugar, it requires patients to prick their finger each time they want a reading. Is there a better way?
SciShow
The Alien Egg Experiment
Hank brings us another simple experiment that demonstrates the important biochemical process of osmosis by turning a chicken egg into a frightening alien-looking thing.
MinuteEarth
How to Make a Seashell - Just Add Water
Why do shell building living creatures live near the surface of the ocean? Learn how chemistry creates a dissolving depth for calcium and determines where shell builders can live.
SciShow
The Brewer Who Secretly Revolutionized Statistics | Great Minds: William Gosset
When you have a study with a small sample size, how do you know that the results represent the broader population? Well, thanks to a brewer who needed to assess beer quality in the early 1900s, we now have a simple statistical test that...
Bozeman Science
Objects
In this video Paul Andersen explains how a system can be viewed as an object and an object can be viewed as a system.
TED-Ed
TED-ED: Could a breathalyzer detect cancer? - Julian Burschka
How is it that a breathalyzer can measure the alcohol content in someone’s blood, hours after they had their last drink, based on their breath alone? And could we use this same technology to detect disease by analyzing a person’s breath,...
SciShow
Why Peeing in the Pool Could Be Dangerous | Disinfection By-Products
It’s kind of a pain to get out of the pool just to use the bathroom, plus chlorine is a disinfectant so it is fine to pee in the pool, right? Well, it turns out that might give you some health issues.
SciShow
The Sound of Your GPA Slipping Away
Researchers have noticed some trends in the relationship between academic performance and noise. Spoiler alert: it doesn’t sound good.
Bozeman Science
Water Potential
Paul Andersen explains how populations experience exponential. He begins by address the major players; N (population size) and r (growth rate). He models population growth in rabbits through four generations. He then shows you how to use...
Crash Course
Drugs, Dyes, & Mass Transfer: Crash Course Engineering #16
Today we’re talking about mass transfer. It doesn’t just apply to objects and fluids as a whole, but also to the individual molecules and components that make them up. We’ll see that transfers of mass need their own driving force,...
SciShow
How Do Laxatives Work?
Even though we're all probably very experienced poopers, sometimes we need a little help.
Crash Course
Buffers, the Acid Rain Slayer: Crash Course Chemistry
In this episode, Hank talks about how nutty our world is via Buffers! He defines buffers and their compositions, talks about carbonate buffering systems in nature, acid rain, pH of buffers, and titration. Plus, a really cool experiment...
SciShow
News Bummers Poison Fog Sad Sperm & SAM
Hank loves science because it helps us appreciate the world more, but not everything that science does makes him happy - reports of poison fog on the West coast of the United States; dramatic decreases in sperm counts; and a lack of...
SciShow
Citizen Astronomy FTW
This week, some rather confusing news from the Moon, and details about how ordinary folks like you helped classify 2 million celestial objects in just five days!
Bozeman Science
Le Chatelier's Principle
In this video Paul Andersen explains how Le Chatelier's Principle can be used to predict the effect of disturbances to equilibrium. When a reversible reaction is at equilibrium disturbances (in concentration, temperature, pressure, etc.)...
SciShow
Carcolepsy: Why Do We Get Sleepy in Cars?
It turns out there are number of aspects of driving that can potentially conspire to lull our bodies into a potentially dangerous state of drowsiness.
SciShow
Science Says You Shouldn't Drink Your Whiskey "Neat"
If you’ve ever sauntered up to the bar and ordered a whiskey neat, you might have felt cool doing it. But... is that really the best way to drink whiskey? Let's ask science!
Amoeba Sisters
Biomagnification and the Trouble with Toxins
Explore biomagnification which can happen when toxins become more highly concentrated when moving up through trophic levels in the food chain. Uncontrolled use of DDT is used in video as an example. Learn why bioaccumulation can occur in...
Bozeman Science
Equilibrium Disturbances
In this video Paul Andersen explains how disturbances to a reversible reaction at equilibrium affect the equilibrium constant and the reaction quotient. For example if the concentration is changed the reaction will move to reestablish...