So... do plants need dirt? The truth might shock you. In this episode of Crash Course kids, Sabrina talks about how plants get energy and how that energy is transported around them. Also, she talks about dirt.

Have you ever heard the phrase, 'You look like a Million Bucks?' Well, you do... but you also look like a million particles. In this episode, Sabrina talks to us about matter and particles and that all matter is made up of particles....

Have you ever wondered if there is anyone (or anything) else out there in the universe? Well, you're not alone. But what would alien life look like? And what would their food chains and food webs look like? In this episode of Crash...

Want a Pineapple? If you want a pineapple, it's possible you can just run down to the store and get one. But, if you wanted to grow one, that's a lot more difficult depending on where you live. In this episode of Crash Course Kids,...

Have you ever seen a magic trick where one thing changes to another thing? Well, that's nothing compared to what plants can do through a process called photosynthesis. In this episode, Sabrina talks about how photosynthesis works! This...

Antarctica is more than a continent-sized sheet of ice (and the penguins that live atop it). There's land, liquid water, and even life underneath all that ice. And scientists have built up a suite of tools to find all of it.

While the word "mummy" may conjure up an image of King Tut (or a 1999 Brendan Fraser action/adventure movie), ancient Egyptians were far from the only culture that mummified their dead. Around the world, and across millennia, people...

Squeaks is back from his trip around the world! In this episode, he and Jessi discuss the second stop on his trip: Fiordlands National Park (aka Te Rua-o-te-moko) in New Zealand (aka Aotearoa)<br/>

Water makes an amazing journey around the world called the water cycle. Squeaks and his friends put on a play to learn all about it!

In this video Paul Andersen shows you how to ask questions in a mini-lesson on evaluating questions. Two examples are included in the video and two additional examples are included in the linked thinking slides. <br/>

It's a hard nut to crack: in order to prevent food waste, we rely on plastic packaging and refrigeration, which harm the environment. What if we could turn to nature to address these challenges? Engineer and chemist Jenny Du shares how a...

Over the last 40 years, Brazil has lost an area larger than California to deforestation — and 90 percent of the clear-cutting has been illegal, all part of a multi-billion-dollar global environmental crime economy. Civic entrepreneur...

The Middle East is a climate hotspot, with many parts of the region set to experience an increase in temperature by five to eight degrees Celsius by the end of the century. Palestinian peace activist Nada Majdalani discusses how the...

Exhausted from carrying water up a hill to keep her small farm in Kenya thriving, Josephine Waweru received an unexpected call that offered a nearly unbelievable solution. She shares how one simple device allowed her crops (and her...

This is the story of how our planet rescued itself from extreme conditions in the Cretaceous Period, at the cost of essentially suffocating the oceans for half-a-million years.

What graptolites tell us is a story of incredible changes in the ocean, of periods where the oceans became poisonous and suffocating before eventually clearing up again. They unlock extinctions and recoveries that scientists didn't see....

To get fire, which exists only on Earth, it took billions of years of photosynthesis – which means fire can’t exist without life. And fire and life have been shaping each other ever since.

What did life look like when the Amazon watershed flowed backwards? How did its direction shape the evolution of life around it? And what force could have possibly been strong enough to up-end one of the world’s mightiest rivers between...

Imagine the scale of raindrops if you were the size of a small bird. Or mosquito. Flying through a drizzle should be deadly! Like flying through falling cars and boulders. And yet it’s not, because nature has given them a...

There's a complex, mysterious current running throughout the Atlantic Ocean, and it's in trouble. But to help save it, researchers need to understand it, and finding ways to study it has been a challenge. But it turns out that the...

Pamukkale, Turkey's Cotton Palace, is home to some of the most beautiful hot springs in the world. Located in the Denizli Basin, it's not only unique, but can tell us a surprising amount about the history of the site.



Hosted...

How would you deal with sewage waste pollution? Here in Missoula, the answer was.... poplar trees. Here's the weird reason that these poplar trees are some of nature's best cleaners, and why our hometown heroes might not be so awesome...

On top of a volcano in Indonesia, there are three lakes. But these three neighbors couldn't be more different, since each of them is a different vivid hue. Let's talk about the weird chemistry atop Keli Mutu Volcano and the three...

Today, the Great Salt Lake of Utah has multiples of the ocean's salt concentration. But it didn't used to be so salty. In fact, it used to be Lake Bonneville. And we know its story thanks to microscopic diatoms and Dr. Ruth...