As small as Jupiter's moons are in comparison to the giant planet, they may actually have an important role to play in keeping each other warm, heating the moons enough to have liquid oceans!

The lab-on-a-stick that lets us know if we’re pregnant is a genius bit of technology that can be used to quickly determine everything from whether there are nuts in our chocolate to whether we have COVID.

Have you ever noticed that toothpaste makes some yummy foods, like orange juice, taste awful? QQ explains!

Clouds can look like castles made of cotton candy, or they can be thin and wispy. But have you ever wondered what clouds actually are?

SciShow Space takes you behind the scenes of astronaut training, to show how crew members and their equipment are tested in microgravity, all while never having to leave Earth.

In this episode of Crash Course Chemistry, Hank gives you the low down on things like London Dispersion Forces, Hydrogen Bonds, Cohesion, Adhesion, Viscosity, Capillary Action, Surface Tension, and why liquids are just......

This video is about compressed air cans (aka gas dusters) and why they get cold when you spray them. They cool off because the refrigerant inside (1,1-difluoroethane) is under pressure and boils off when the...

Molecules come in infinite varieties, so in order to help the complicated chemical world make a little more sense, we classify and categorize them. One of the most important of those classifications is whether a molecule is polar or...

The time it takes to you to tinkle is probably about the same as an elephant, even though an elephant's bladder is over 100 times larger. How can that be right? The answer is a combination of physiology and fluid dynamics.

In this video Paul Andersen explains how chemical differs from physical change. In the laboratory macroscopic observations are used to infer changes at the particulate level. Evidence for chemical change include gas production, change...

Cats and dogs have it tough: They can't use straws, or tip a cup up to their mouths to drink. Instead, they have to use their tongues and a few different physics tricks to quench their thirst.

Quick Questions explains how cold winter air triggers the same processes that form clouds, fog, and dew so you can see your breath!

All cooking is science: we use chemistry and physics to steam, fry, bake, or microwave almost all of our meals. However, there are some cooking methods that delve into even deeper and stranger scientific territory.

Today is a big day! Jessi and Squeaks are going to make slime, and they're going to show you how to make it, too! Plus, they'll tell you all about the gooey science that makes slime so weird and fun!

Have you ever wondered why 75% humidity in the summer feels sticky, but 75% humidity in the winter feels super dry? Turns out, the common definition of humidity is inconvenient and confusing. But there is a better way!

Water doesn't always freeze when it's supposed to. Learn about supercooling, and how to supercool a bottle of water at home -- and then turn it to ice instantly!

You might have one of them, e-cigarette. Some people switch to it from average tobacco to quit smoking. But is it really a better and safer option for you?

This week we continue to spend quality time with gases, more deeply investigating some principles regarding pressure - including John Dalton's Law of Partial Pressures, vapor pressure - and demonstrating the method for collecting...

Jessi and Squeaks found a branch growing what looked like white hair! So they brought the branch back to the Fort to run some tests and found out that it isn't hair at all... it's ice!



Second Grade Next...

Ever wondered what happens to your body if you don't get enough water? Our bodies are mostly water by weight, so in today's episode of SciShow Hank explains what happens to your body as it starts to shut down when you go without that...

Winter: It's that time of year when you're out for a stroll and maybe miss a hidden patch of ice and fall flat on your butt. Why you gotta play us this way, ice?

Imagine a cup of tea that doesn't obey the laws of physics, it pours out of the bottom of your cup while crawling up the sides to the top, and you'll have a pretty good picture of the ultracold phenomena of superfluids.

It's snowing and Mister Brown needs to go put some salt on the Fort's front steps. But Squeaks wants to know, why do we put salt on icy sidewalks?



Second Grade Next Generation Science...

What has the highest melting point known to us? Hank Green explains in this episode of SciShow.