Biology is the study of life—a four-letter word that connects you to 4 billion years worth of family tree. The word “life” can be tricky to define, but a shared set of characteristics helps biologists identify living things. In this...

Did you know that your environment and lived experiences can actually affect your DNA? Welcome to the world of epigenetics! In this fun episode of SciShow, Hank & his clone Circus Hank explain the power of epigenetics, which studies the...

The basic idea of bitcoin is simple: Instead of a financial institution holding a bank ledger, a chain of computers linked through the internet are all using the same software to record and verify every transaction. But how can a...

If we want to fix our politics, we have to do something about inequality, says social psychologist Keith Payne. Showing how economic inequality changes the way people see and behave towards one another, Payne helps explain the rise of...

Jessi swallowed her gum and was worried that it would stay in her stomach for 7 years! Could this really happen? What makes gum so different from other food?

An artwork's color or composition can pull you in -- and put you on the path to having important and difficult conversations, says artist Titus Kaphar. In this stunning talk, he reflects on his artistic evolution and takes us on a tour...

What can we expect our kids to learn if they're hungry or eating diets full of sugar and empty of nutrients? Former White House Chef and food policymaker Sam Kass discusses the role schools can play in nourishing students' bodies in...

There's an angry divisive tension in the air that threatens to make modern politics impossible. Elizabeth Lesser explores the two sides of human nature within us (call them "the mystic" and "the warrior”) that can be harnessed to elevate...

There are some animals with special adaptations that help them blend in to the places they live! See for yourself how this works as you take on the role of a hungry bird looking for tasty bugs!

FEED ME! In this episode of Crash Course Kids, Sabrina has a chat with us about what living things eat to get energy. What makes something an omnivore, or a carnivore, or an herbivore? And how do plants fit in to all of this? This first...

We can purge our stomachs by vomiting when we consume something that our body thinks might be harmful, but what about animals that can't?

What's a company's purpose? It's not the same as mission or vision, which change when leadership changes. Strategist Ashley M. Grice explains the power of purpose to push boundaries of innovation and bring clarity to every aspect of an...

Sometimes, it makes sense for critters across the animal kingdom to chow down on their own young.

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FYI: We try to leave jargon out of...

The James Webb Space Telescope is the most complex telescope we’ve ever sent into space. But, Webb is not, in fact, in space… yet.

Everybody does it! But why does it happen? Jessi gives you a look at your digestive system, to discover why we sometimes get a case of the burps.

By loading kids with high expectations and micromanaging their lives at every turn, parents aren't actually helping. At least, that's how Julie Lythcott-Haims sees it. With passion and wry humor, the former Dean of Freshmen at Stanford...

You may feel a bit grumpy when you're hungry, but hunger can affect us in more powerful ways than we realize.

How did we come up with our system of telling time? Why do we divide the day into 24 hours of 60 minutes each, and put 60 seconds in each minute? Where does the definition of a second come from? And who decides what clock shows the...

Mister Brown and Squeaks are making bread, and they're going to need a tiny little helper to get the job done: a fungus called yeast!



Disciplinary

Core Idea:

PS1.B: Chemical Reactions - Heating or cooling a...

David Macaulay relives the winding and sometimes surreal journey toward the completion of Rome Antics, his illustrated homage to the historic city.

Even an empty lunch sack is useful to science. You can examine it and come up with some traits. In this episode, Sabrina chats about things like malleability, hardness, conductivity, and magnetism. And all with lunch! This first series...

It’s important to know that the typical workday in China varies depending on the region, the industry, and even what generation you’re talking about. Learn about the different types of companies and what their expectations are for...

Italians take great pride in their food. Quite simply, they think it’s the best in the world, and certainly the number of Italian restaurants across the globe is testimony to the food’s appeal. For Italians, every meal’s a...

While businesses in Hong Kong follow a typical work schedule, professionals often work longer hours than in other countries—depending on the industry—in an effort to save face and appear hardworking to colleagues and management. Want to...