Crash Course
The Milky Way
Today we’re talking about our galactic neighborhood: The Milky Way. It’s a disk galaxy, a collection of dust, gas, and hundreds of billions of stars, with the Sun located about halfway out from the center. The disk has grand spiral...
Curated Video
What Is Fire?
Why does fire burn? What's the chemistry and physics of a flame? This week, learn about the beautiful science happening inside a flame!
MinuteEarth
The Hidden Side Of Proteins
You might already know that proteins are a fundamental part of your diet, but they're much more than that.
SciShow
Victorian Pseudosciences: Brain Personality Maps
in 19th-century England, scientists were figuring out that certain parts of our brains were connected with certain parts of our bodies- but they came up with some terrible and misleading ideas that spread without rigorous scientific...
Crash Course
The Shape of Data Distributions - Crash Course Statistics
When collecting data to make observations about the world it usually just isn't possible to collect ALL THE DATA. So instead of asking every single person about student loan debt for instance we take a sample of the population, and then...
Bozeman Science
Operon
In this video Paul Andersen describes the elements of an operon. The promoter allows the RNA polymerase to transcribe the required genes. The operator and repressor regulate the expression of the genes by blocking the RNA polymerase. The...
TED-Ed
TED-Ed: How do glasses help us see? - Andrew Bastawrous and Clare Gilbert
Today, glasses help millions of people with poor vision be able to see clearly. But how? Andrew Bastawrous and Clare Gilbert help unravel the answer by explaining refraction - the ability of a transparent medium, like glass, water, or...
TED-Ed
TED-ED: What makes a poem a poem? - Melissa Kovacs
What exactly makes a poem - a poem? Poets themselves have struggled with this question, often using metaphors to approximate a definition. Is a poem a little machine? A firework? An echo? A dream? Melissa Kovacs shares three recognizable...
Crash Course
Catholic Counter-Reformation: Crash Course European History
When the Protestant Reformation broke out in Western Europe, the Catholic Church got the message, at least a little bit. Pope Paul III called a council to look into reforming some aspects of the Catholic Church and try to stem the tide...
MinuteEarth
This Is Not A Pine Tree
True Pines (conifer trees in the genus Pinus) are often confused with other members of the Pinaceae family like Picea (Spruces), Abies (Firs), Pseudotsuga (Douglas-firs) or Larix (Larches). So is very likely that your Christmas tree is...
SciShow
Prions: The Real Zombie-Makers
Hank is tired of zombies in popular culture, and while acknowledging that dead people are scary (especially if they start moving around), he brings us some information on prions - misfolded proteins that are responsible for destroying...
Bozeman Science
Solids and Liquids
In this video Paul Andersen compares and contrasts the properties of solids and liquids. Solids have a more organized structure which can either be amorphous or crystalline. In liquids the intermolecular forces are lower and so the...
SciShow Kids
Float a Boat!
We've learned before here on SciShow Kids how boats can float on water using displacement! Today, Bill and Webb will show you how to build you own boat and see displacement in action! Anchors aweigh!
TED-Ed
TED-Ed: How do crystals work? - Graham Baird
What makes crystals grow into their signature shapes? Dig into the atomic patterns and unique properties of crystals. -- Many crystals have signature shapes— like the cascade of pointed quartz or a pile of galena cubes. Every crystal’s...
SciShow Kids
Let's Build Paper Rockets | Experiment | Let's Explore Mars! | SciShow Kids
Squeaks and Mister Brown are so excited about rockets, they're going to make their own! You can join in on the fun and learn how to make one too!
TED-Ed
TED-Ed: Performing brain surgery without a scalpel | Hyunsoo Joshua No
Every year, tens of thousands of people have brain surgery without a single incision: there's no scalpel, no operating table, and the patient loses no blood. Instead, this procedure uses a machine that emits invisible beams of light at a...
Bozeman Science
Blood Types
Paul Andersen explains the importance of blood types in blood transfusions. He starts with a brief discussion of blood antigens and antibodies. He describes how the ABO differs from the Rh blood type. He shows you how to solve simple...
SciShow
Hydrogen Bonding…but With Carbon | Great minds: June Sutor
Proteins, and by extension our bodies, depend on the fact that atoms are arranged, spaced, and linked to each other in specific ways. And thanks to June Sutor, we have a better understanding of how those atoms come together and interact...
Crash Course
Muscles, part 1 - Muscle Cells: Crash Course A&P
We're kicking off our exploration of muscles with a look at the complex and important relationship between actin and myosin. Your smooth, cardiac, and skeletal muscles create movement by contracting and releasing in a process called the...
SciShow
Rogue Planet Discovered!
Today Hank brings us the news of a unique astronomical discovery - a rogue planet. He also allays our fears of an apocalyptic collision with Earth. So, this new planet is awesome, but it needs a different name - CFBDSIR...
Be Smart
Why Is Blue So Rare In Nature?
Among living things, the color blue is oddly rare. Blue rocks, blue sky, blue water, sure. But blue animals? They are few and far between. In this video, we'll look at some very cool butterflies with Bob Robbins, Ph.D. from Smithsonian's...
Crash Course
The Skeletal System: Crash Course A&P
Today Hank explains the skeletal system and why astronauts Scott Kelly and Mikhail Kornienko are out in space studying it. He talks about the anatomy of the skeletal system, including the flat, short, and irregular bones, and their...
SciShow Kids
Fun Summer Science!
The sun is out and Jessi and Squeaks are ready to perform all kinds of fun outdoor science experiments! Let's take a look at some of the fun activities they've done before, like making a kite, building a solar tower, blowing bubbles, and...
Crash Course
3D Structure and Bonding - Crash Course Organic Chemistry
The organic molecules that make up life on Earth are more than just the 2-D structures we’ve been drawing so far. Molecules have 3-D shapes that help us understand what they can do. In this episode of Crash Course Organic Chemistry,...