SciShow
How Weed Works: THC
Hank explains the science behind the effects of that wackiest of weeds, cannabis sativa - aka marijuana.
SciShow
How to Avoid Corpse-Flavored Water
As organisms decompose their chemical and bacterial components can leach into the surrounding ground and water. The bodies buried in cemeteries are no exception.
SciShow
Instant Fish: Just Add Water | Salamanderfish
In the peat flats of Western Australia, a peculiar fish lies in wait: salamanderfish spend several months buried underground until the dry sand they live in fills with water again.
SciShow
Why’d the Ocean Stop Getting Saltier?
If salty water is constantly spilling into the world’s oceans, does that mean they are getting saltier by the day?
SciShow
Antimony: The Life-Saving Toxin
Antimony is toxic to inhale, swallow and touch, but it might also save your life.
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 boiling river of the Amazon | Andres Ruzo
When Andres Ruzo was a young boy in Peru, his grandfather told him a story with an odd detail: There is a river, deep in the Amazon, which boils as if a fire burns below it. Twelve years later, after training as a geoscientist, he set...
SciShow
What Really Happened the First Time We Split a Heavy Atom in Half
When scientists first split the atom, they didn't realize what they'd done until physicist Lise Meitner figured out they had discovered what we now call nuclear fission.
SciShow
How Different Types of Alcohol Affect Your Emotions
Despite popular belief, different types of drinks shouldn’t make you feel any differently because they’re all ethanol. Our brains are complicated, though, and there’s more to the story than just the drink itself.
SciShow
Weird Things Whales Lost on Their Journey to the Sea
When the ancestor of cetaceans went back into the water some 50 million years ago, it left a few things behind—including the functioning of certain genes that seem like they’d be hard to live without.
SciShow
How Quantum Mechanics Affects Your Life
While you might not think about quantum mechanics being part of your everyday life, it turns out that it might play a role in some of the most familiar things, from the sunlight in the trees to the nose on your face! Chapters View all...
TED Talks
TED: We could kick-start life on another planet. Should we? | Betül Kaçar
Life makes our planet an incredibly exotic place compared to the rest of the known universe, says astrobiologist Betül Kaçar, whose research uses statistics and mathematical models to simulate ancient environments and gather insights...
SciShow
New Surprises from the Asteroid Bennu - SciShow News
There’s nothing boring about Bennu! From its chemistry, size, shape, and spin to its extremely old age, it proves that even the smallest objects in the solar system have a bizarre and fascinating history.
TED Talks
Ramsey Musallam: 3 rules to spark learning
It took a life-threatening condition to jolt chemistry teacher Ramsey Musallam out of ten years of "pseudo-teaching" to understand the true role of the educator: to cultivate curiosity. In a fun and personal talk, Musallam gives 3 rules...
TED Talks
Janine Benyus: Biomimicry's surprising lessons from nature's engineers
In this inspiring talk about recent developments in biomimicry, Janine Benyus provides heartening examples of ways in which nature is already influencing the products and systems we build.
SciShow
The 22 Year-Old Chemist Who Changed Leprosy Treatment | Great Minds
A cure for leprosy eluded humans for thousands of years, until the pioneering chemistry work of Alice Ball. With her treatment, patients recovered enough to be discharged from the hospital by the hundreds.
SciShow
Targeting Iron to Fight Cancer | SciShow News
Cancer treatment is hard on the whole body, but a promising treatment is looking to target cancer's appetite and leave the rest of our cells alone.
Crash Course
Ecology - Rules for Living on Earth: Crash Course Biology
Hank introduces us to ecology - the study of the rules of engagement for all of us earthlings - which seeks to explain why the world looks and acts the way it does. The world is crammed with things, both animate and not, that have been...
Crash Course
Synthesis and Column Chromatography: Crash Course Organic Chemistry
Even though all living things have a lot in common, different organisms can have very different reactions to the same organic chemicals. That means it’s really important for organic chemists to be able to purify chemicals and separate...
TED Talks
Susan Shaw: The oil spill's toxic trade-off
Break down the oil slick, keep it off the shores: that's grounds for pumping toxic dispersant into the Gulf, say clean-up overseers. Susan Shaw shows evidence it's sparing some beaches only at devastating cost to the health of the deep sea.
SciShow
Can Feeling the Love Save Lions? | SciShow News
Can you feel the love tonight? Hopefully scientists can make this the case for the growing numbers of lions in animal sanctuaries.
Amoeba Sisters
Properties of Water
Explore some properties of water with the Amoeba Sisters! It's all about those hydrogen bonds.