Amoeba Sisters
Enzymes: Before the Bell Biology
Time before the bell to try 7 questions focused on enzymes? You'll also get answers complete with illustrations and explanations while music plays in the background. This particular video focuses on enzyme vocabulary (such as active...
SciShow
The Metal Claw Hiding in Your Food
Have you ever seen "calcium disodium EDTA" on an ingredients label and wondered what it's doing in your food? As it turns out, ethylenediamene triacetate is an important preservative that's helping to preserve your food. It's totally...
PBS
Why Does Caffeine Exist?
Today, billions of people around the world start their day with caffeine. But how and why did the ability to produce this molecule independently evolve in multiple, distantly-related lineages of flowering plants, again and again?
SciShow
Why We Stopped Making Progress on Malaria
After decades of improvement, the number of malaria deaths is on the rise again. So scientists are experimenting with a new kind of mosquito control, and it's not an insecticide.
SciShow
These Animals Lost Their Stomachs. Why?
What do a platypus, a pufferfish, and a seahorse have in common? Why, they all managed to evolve themselves out of having a working stomach! The reasons why might vary, as well as how they manage to live their lives without them, but...
SciShow
The Deal with Carbs
Carbs are pinned to be the villains in many diets, but those poor guys are just misunderstood.
SciShow
How Do Pineapples Eat Us Back?
The pineapple. Sweet, juicy, and kind of painful. What is it about this tropical fruit that seems to bite us back?
SciShow
The 8 Smartest People of the Year: 2013's Nobel Winners
Hank profiles this year's Nobel laureates in science, whose achievements have helped us understand questions as small as how our cells transport materials, and as big as why matter exists at all.
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
What Happens to My Wool Sweater in the Washer?
Be careful with your wool. Unless you want a nice piece of felt with some holes in it.
SciShow
The Secrets Hidden in Your Tears, Earwax, and Other Secretions
Our various secretions - from tears to earwax - can tell us more about our bodies than you might think!
SciShow
We're One Step Closer to Understanding Aging
Scientists have had a variety of hypotheses about how chemical stress can affect DNA to cause aging, but a new study has just shown the process in action. Hosted by: Hank Green
SciShow
Oh No...Is Nature Going to Make Climate Change WORSE?! | SciShow News
Photosynthesis plays a huge role in regulating the earth's CO2. But what happens when the temperature gets high enough that photosynthesis slows down?
SciShow
How to Get Drunk on Bread
A man walks in to a hospital super drunk... but claims he hasn't had a sip of alcohol. Join us today for SciShow medical mystery!
SciShow
Why We Have Pain, & How We Kill It
Hank makes it all better by explaining the biochemistry of pain -- how it works, why we have it, and how painkillers, whether they're over the counter or heavy-duty prescription bad boys, make the pain go away.
SciShow
Why Herpes Is the Most Talented Virus Ever
Unlike with many other viruses, once you get a herpesvirus you’re stuck with it for life. But just how do these master trespassers accomplish this feat?
Bozeman Science
Cooperative Interactions
Paul Andersen emphasizes the importance of cooperation in living systems. He starts with a brief description of game theory and why countries at peace do better over the long term. He then explains how microscopic cells cooperate in the...
SciShow
The 2016 Nobel Prizes: Chemistry and Physics!
This Nobel Prize season, dive into the world of the super small for physics and chemistry. It's where the nanocars roam and phase transitions get really weird.
SciShow
Oh No...Is Nature Going to Make Climate Change WORSE?! | SciShow News
Photosynthesis plays a huge role in regulating the earth's CO2. But what happens when the temperature gets high enough that photosynthesis slows down?
SciShow
Why Are There So Many Beetles
Beetles are the most diverse group of complex organisms on Earth, making up over 20% of all named animal species. One in five species on this planet is...a beetle. How did one group of organisms get THAT massive?
SciShow
The Secrets Hidden in Your Tears, Earwax, and Other Secretions
Our various secretions - from tears to earwax - can tell us more about our bodies than you might think!
SciShow
Sneaky Ways Chemists Are Making Our World Safer
The path that products take to get onto store shelves doesn’t always leave the best impact on the environment. But with green chemistry, chemists have found ways to make the production of some items safer for both people and the planet.
SciShow
The Delightful Mutation Behind Siamese Cats
It's easy to assume a cat's coat pattern is based exclusively on genetics, but that isn't entirely the case for Siamese cats. Their unique coloration comes from a combination of genetics, a fragile enzyme, and losing heat from little...
Bozeman Science
AP Biology Labs - part 2
Paul Andersen explains the final 6 of 13 AP Biology Labs. The following topics are included: Transformation, Restriction Analysis of DNA, Energy Dynamics, Transpiration, Animal Behavior, and Enzyme Activity.