SciShow
Catfish Walking on Land Find Water by its Smell
There’s a reason behind the saying “fish out water.” Fish don’t tend to do well if they’re not immersed in liquid. But walking catfish are surprisingly adept at making their way on land.
Crash Course
Water and Solutions -- for Dirty Laundry: Crash Course Chemistry
Dihydrogen monoxide (better know as water) is the key to nearly everything. It falls from the sky, makes up 60% of our bodies, and just about every chemical process related to life takes place with it or in it. Without it, none of the...
TED-Ed
TED-Ed: Is fire a solid, a liquid, or a gas? - Elizabeth Cox
Sitting around a campfire, you can feel its heat, smell the woody smoke, and hear it crackle. If you get too close, it burns your eyes and stings your nostrils. You could stare at the bright flames forever as they twist and flicker in...
TED-Ed
TED-Ed: Why is this 2,500 year old shipwreck so well-preserved? | Helen Farr and Jon Adams
In 2017, researchers off the Bulgarian coast discovered the oldest intact shipwreck ever found. This ancient Greek vessel was not only nearly 2,500 years old, but was just one of 65 shipwrecks found at the bottom of the Black Sea in...
SciShow
Why Do Earthworms Come Out After It Rains?
Scientists come up with lots of possible reasons why rain triggers earthworms mysterious behavior: popping out of the soil and getting stranded on the ground.
SciShow
Why Is My Poop Green?
One of the most commonly googled questions in the world is why feces can be green. Well, Quick Questions has the answer!
SciShow
Making a Realistic Simulation of the Sun
We’ve created simulations to recreate the difference in time it takes for the Sun’s equator and poles to complete rotations, and the way we’ve solved is a bit surprising. And it looks like the Milky Way may not be great at mixing metals,...
SciShow
Why Can't Kids Just Take Smaller Doses of Adult Meds?
You might have noticed that lots of drugs have special children’s formulas, and you might think that’s because smaller people need smaller doses. But you’d be wrong! Because kids aren’t just tiny adults.
SciShow
5 Weird Things That Can Catch Fire
Fire: it's beautiful, it's dangerous, and it shows up in surprising places. Here are five weird things you might have on hand that can go up in flames. Chapters 0:00 0:05 0:11 0:17 0:23 0:29
TED Talks
Kamal Meattle: How to grow fresh air
Researcher Kamal Meattle shows how an arrangement of three common houseplants, used in specific spots in a home or office building, can result in measurably cleaner indoor air.
SciShow
6 Bacteria with Awesome Superpowers
Bacteria have evolved some pretty incredible abilities. They may never star in a big summer movie, but here are six bacteria with amazing superpowers.
SciShow
Aquatic Animals That Live in Trees
Fish in a tree? How can that be? For some aquatic creatures, it's not necessarily bad to be a fish out of water.
PBS
When Fish First Breathed Air
385 million years ago, a group of fish would undertake one of the most important journeys in the history of life and become the first vertebrates to live on dry ground. But first, they had to acquire the ability to breathe air.
Crash Course
Nucleophiles and Electrophiles - Crash Course Organic Chemistry
Organic reactions are kind of like carefully choreographed fight scenes, and nucleophilic attack is a key move. This episode of Crash Course Organic Chemistry is all about nucleophiles and electrophiles, or what happens at those...
SciShow
The Next Search for Alien Life, and Release the Cubesats!
SciShow Space explores the latest mission to search for extraterrestrial life, and the mission of two tiny satellites that aims to make space travel safer.
SciShow
Visual Illusions: Why You See Things That Aren't There
What's the deal with all those little flashes of light you see when you close your eyes? And why do truck drivers and people in jail see glowing circles and spirals?
SciShow
Curiosity’s Sequel, and the Key to Finding Alien Life
SciShow Space News shares the latest developments from around the universe, including the Curiosity’s arrival at its final destination, and new insights into what clues we should really be looking for in our search for alien life.
SciShow
Why Gooey Creatures Might Outlast Us All
Although gelatinous animals might seem like simple creatures, they'll probably outlast the rest of us, because being gelatinous might turn out to be the ultimate survival strategy.
Bozeman Science
Lewis Diagrams and VSEPR Models
In this video Paul Andersen explains how you can use Lewis Diagrams and VSEPR Models to make predictions about molecules. The Lewis diagrams are a two-dimensional representations of covalent bonds and the VSEPR models show how the...
TED-Ed
TED-ED: What is leukemia? - Danilo Allegra and Dania Puggioni
Stem cells found in the bone marrow are crucial for our health because they are needed to become new blood cells that sustain and protect our bodies. But when the transformation goes wrong, harmful mutations can cause the cells to start...
Crash Course
Respiratory System, part 2: Crash Course A&P
Can a paper bag really help you when you are hyperventilating? It turns out that it can. In part 2 of our look at your respiratory system Hank explains how your blood cells exchange oxygen and CO2 to maintain homeostasis. We'll dive into...
SciShow
The Biggest Sloth That Ever Lived, and 6 Other Gigantic Animals
Sometimes it seems like the past favored large animals, but it turns out that each one on this list has a different reason for its size. Chapters View all Carboniferous & Permian periods 360 251 million years ago 1:04 DRAGONFLY Credit:...
Amoeba Sisters
Human Body Systems Functions Overview: The 11 Champions (Updated)
This is the updated Amoeba Sisters human organ systems video, which provides a brief function introduction to each of the 11 human organ systems. Table of Contents: Intro 00:00 Levels of Organization 0:49 Circulatory 1:39 Digestive 2:40...