No substance has been as constant an ally to insidious scheming as arsenic, the so-called “king of poisons.” In its chemically pure form, it isn’t much of a threat because our bodies don’t absorb it well; it’s when arsenic combines with...

Today, Jessi and Squeaks learn about some common (and maybe even spooky) ingredients used to make candy, including what might be the most famous Halloween candy of them: Candy Corn!



Second Grade Next Generation...

Early this year, 3D printing showed off its space-age technology capabilities by printing most of a rocket that was launched into space.

Indigo may be a very vague and unnecessary color, but it has an interesting history that involves some plants, turmoil, and Isaac Newton's interest in the number seven. Hosted by: Hank Green

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.

Mister Brown and Squeaks learn all about gelatin, and investigate if it is a liquid or a solid!

Adding the wrong fruits to your gelatin can turn it into a big, goopy mess. But understanding why this happens can help you learn how to make better desserts, and level up your cooking game in general.

In the mid-ninth century, Chinese chemists, hard at work on an immortality potion, instead invented gunpowder. They soon found that this highly inflammable powder was far from an elixir of life -- they put it to use in bombs against...

You look really pretty, but what are you actually putting all over your face?

In this episode we discuss Schrodinger's cat, quantum entanglement, and our perception of reality.

It's not the happiest subject, but when someone dies in space, or on another planet, what will happen to the body?

Sounds in the ocean can travel more than 10,000 miles - that's halfway around the world! Here's how.

In the 1930s, a mistake that cost over a hundred lives helped usher in a new era of safer medicine.

Hank explains the science behind the "cinnamon challenge," and reveals why it is nearly impossible to complete.Do not attempt the cinnamon challenge! Instead, why not just watch some videos of the thousands of YouTubers failing at it!...

Soybeans have been cultivated in Asia for thousands of years, and have since spread across the globe. Today, soy is in so many foods that most people consume it every day without even knowing it. So, what makes soybeans so versatile? And...

Hate the taste of sour stuff? Well fret no more with this miracle berry! It will coat your tongue with an awesome protein to make everything taste sweet! Hank Green explains in this episode of SciShow.

Indigo may be a very vague and unnecessary color, but it has an interesting history that involves some plants, turmoil, and Isaac Newton's interest in the number seven.

Sam the Bat stopped by the fort today, and brought his famous pumpkin spice cookies! But what exactly is pumpkin spice?

If you can't imagine life without chocolate, you're lucky you weren't born before the 16th century. Until then, chocolate only existed as a bitter, foamy drink in Mesoamerica. So how did we get from a bitter beverage to the chocolate...

New ReviewGood ol' corn starch to the rescue!

Higgins is done with Spangler's science pranks!

A video entitled "Proportions" which shows how to multiply both values in a ratio by a factor to make an equivalent ratio.

Howcast - Though people tend to judge them, goths are all about acceptance. And a preoccupation with death.

Howcast - When converted to a standard solution, EDTA is a useful chemical compound for titration applications such as determining the metallic content of various solutions.