Be careful with your wool. Unless you want a nice piece of felt with some holes in it.

Some days you look in the mirror and find a long dark hair where it didn't use to be. Maybe you're going through puberty, pregnancy, or menopause. Maybe you're not. But either way, that hair didn't appear out of nowhere. It just went...

There are lots of unsolved mysteries in the world of math, and many of them start off with a deceptively simple premise, like: What's the biggest couch you can slide around a 90-degree corner? Hosted by: Michael Aranda

Brown cats are something of a rarity, but you may have something pretty close.

SciShow explains the genetics -- and physics -- behind why blue eyes are blue, and what the future may be for the trait. Spoiler alert: Blue eyes aren’t really blue! SciShow explains!

Hank talks birds, flight, and dinosaurs with evolutionary biologist Brandon Jackson. Then Jessi from Animal Wonders shows up with a special guest, a white-cheeked turaco named Curly Bird!

The name "E. coli" is enough to strike terror into the stomachs of anyone who has experienced food poisoning. But some strains of this bacteria don't actually make you sick, and have turned out to be useful tools for bioengineers.

Hank addresses a highly requested topic - liquid fluoride thorium reactors - and tells us how LFTR might be the future of energy in ... China?

Everyone loves bananas. But because banana trees die and grow back every year, researchers want to find ways to recycle all that biomass -- from bioplastic, to solar panels, to skateboards.

Chimpanzees and bonobos may be very close to us humans on the tree of life, but one of our differences is the way we store fat. That difference comes down to types of fat cells and our DNA. Hosted by: Hank Green

Hundreds of years ago, your ancestor stole a magical tarot deck from Fate herself— and it came with a terrible cost. Once every 23 years, one member of your family must face Fate in a duel with rules only known to your opponent. And...

A lot of our food comes from plants, including honey! Mister Brown and Squeaks learn how honey goes from being watery nectar in a flower to the sweet sticky substance we all know and love - and it's all thanks to bees!

This week, Mike is teaching you about the most mythic of mythological creatures: Dragons. Cultures across the world (and across Westeros) tell stories of dragons, and their power to destroy, their power to prop up kings, and their power...

The 1930s in the United States were pretty bad for employment in all industries, and the theater was no exception. As part of Roosevelt's New Deal, the Works Progress Administration created a division called the Federal Theatre Project....

In the early 20th century United States, big melodramatic productions were on Broadway, and everywhere across the country. Which inevitably led to an Avant-Garde backlash. An interesting part of the backlash was Little Theater, a...

When human rights advocate Manu Peni returned to Papua New Guinea from abroad, he built a home for himself using modern techniques -- and promptly learned a harsh lesson on how the newest ideas aren't always the best ideas. Peni calls...

In this video Paul Andersen explains how the greenhouse effect and greenhouse gases keep our planet warm enough to be habitable. He explains how greenhouse gases keep heat closer to the surface. He finally shows how increases in...

If you've ever been stuck at a red light on a country road, you know it can be annoying. No other cars for miles, but you can't shake the feeling that if you run the light, one will appear out of nowhere and slam into you. Today we have...

Welcome to Crash Course Film Production, our 15 part series on how movies are (generally) made and who does what job and when... it's a lot to cover. Your host, Lily Gladstone, will be taking you through this series so let's get to know...

The physics of the perfect storm

Mr. Andersen describes the virtual fly lab. Software at sciencecourseware.org allows for multiple matings and statistical analysis.

Since 1850, global average temperatures have risen by 1 degree Celsius. That may not sound like a lot, but it is. Why? 1 degree is an average. Many places have already gotten much warmer and if average temperatures increase one more...

If you've ever gone outside really early on a cold day in fall, you might have seen a thin layer of sparkly ice crystals covering everything! That ice is called frost, and it can only form if the weather is exactly...

Jessi teaches Squeaks all about recycling, and together, they recycle his old crayons to make cool new ones!



Second Grade Next Generation Science

Standards

Dis

ciplinary Core Idea:

PS1.B: Chemical...