Rockets are super amazing, but how do we get something that weighs as much as 100 elephants all the way into space?

It's pi day! Hank explains why this irrational number is important to scientists, and discusses a bit of a controversy that surrounds it.

TOP 10 REASONS Why We Know the Earth is Round

Wind is everywhere. The air is constantly moving, sometimes gently, sometimes violently. Why? Pressure, temperature and rotation come together to make wind. Here's how.

This week, Dr. Shini Somara goes toe to toe with Hank in a battle of wits about fluid dynamics and life in space.

Chemicals are in everything we see, and the reactions between them can look like anything from rust on a spoon to an explosion on your stovetop. But why do these reactions happen in the first place? Kareem Jarrah answers this question by...

Thanks to the Space Telescope Science Institute (STScI) and NASA's James Webb Space Telescope for supporting this video! In particular, thanks to Dan Coe of STScI for taking the time to chat with me about what we do and don't know about...

Take a look... A VERY special guest, LeVar Burton, explains how Double Rainbows are formed.

Ever wonder why the earth has different seasons? Michael Aranda will explain in this episode of SciShow Quick Questions.

Hank builds a simple electric motor just powerful enough to make a small screw spin, but also strong enough to blow your mind.

In this video Paul Andersen describes genetics at the chromosomal level. He begins with a simple monohybrid cross as viewed through Mendelian genetics and then shows how genes are distributed through meiosis to possible gametes. This...

Paul Andersen shows you how to graph data by hand. He explains the required elements of a scatter plot with a best fit line. He shows you how to properly scale and label the axes.

Before the sun never set on the British Empire; before Genghis Khan swept the steppe; before Rome extended its influence to encircle the Mediterranean Sea; there was ancient Assyria. Considered by historians to be the first true empire,...

Let's say you're looking for a specific constellation in the sky, but can't find it? That could be because you're on the wrong part of the planet to see it. In this episode of Crash Course Kids, Sabrina talks about how the Earth's...

Fourteen Greenlands could fit in Africa— but you wouldn't guess it from most maps of the world. The fact is, every world map humans have ever made is wrong. Actually, it's impossible to make a flat map of the whole spherical world 100%...

Mr. Andersen explains significant digits and shows you how to use them in calculations.

Improve your English with our original drama series. In this episode, you’ll hear real English conversations, learn everyday expressions, and practice listening comprehension in a fun, story-driven format. For learners at the...

Welcome back to the Fluctus Channel, as we witness the precision behind America’s expert ground crews preparing the F-15’s deadly 20mm cannon for action. Fluctus is a website and YouTube channel dedicated to sea geeks. Whenever you are...

It's a math teacher's dream!

Dive into the world of dental health with our "Teeth Song"! Perfect for kids, this catchy tune will spark your imagination and teach you all about the wonders of keeping your teeth clean and healthy.

Embark on a cosmic adventure with our "Saturn Song"! Perfect for kids, this catchy tune will spark your imagination and teach you all about the wonders of Saturn and its majestic rings.

Embark on a deep-space adventure with our "Neptune Song"! Perfect for kids, this catchy tune will spark your imagination and teach you all about the wonders of the distant, blue planet Neptune.

Float into the enchanting world of melodies with our "Flute Song"! Perfect for kids, this catchy tune will spark your imagination and teach you all about the wonders and elegance of the flute.

In this short math video we will understand place value & rounding rules. We are asked to round to the nearest ten thousand. We will review rounding rules and understand that we look at the digit to the right of the place value we are...