Salt doesn’t just make things salty! It has a lot of different effects on how we perceive flavors!

This video explores the fascinating world of orchids, showcasing their unique strategies for survival and reproduction. From mooching off fungi to cheating pollinators and thriving in inhospitable environments, orchids have evolved into...

The paleo diet is becoming more popular, but research suggests its claims aren't all that scientific.

Mr. Andersen explains how carbon-14 dating can be used to date ancient material. The half-life of radioactive carbon into nitrogen is also discussed.

So when water evaporates, what happens? Where does that water go? Does just vanish? Is it no more? Can matter every just go away? Well, the answer is no, it can't. But it can LOOK like it does. In this episode of Crash Course Kids,...

Cats are known for their curiosity, and as that one saying goes “it killed the cat”. But we can help our cuddly counterparts avoid this sad fate if we watch out for these three everyday things.

While sugar is easy to spot in candy, soft drinks and ice cream, it also hides out in foods you might not expect -- including peanut butter, pasta sauce and even bologna! Robert Lustig decodes confusing labels and sugar's many aliases to...

From a chocolate chip cookie to a big, juicy strawberry, your favorite sweet snacks have one thing in common: sugar! Join Jessi and learn all about how sugar gets from plants to your kitchen table!

Why is RNA just as cool as DNA? Join the Amoeba Sisters as they compare and contrast RNA with DNA and learn why DNA should be sharing the limelight! Table of Contents: 00:00 Intro 0:54 Similarities of DNA and RNA 1:35 Contrasting DNA and...

How Our Honey is Made

You might have wondered why bumblebees stop for a moment to stare at the flower they were just interacted with. Are they cherishing all the good times they had together, or is this behavior serving a biological purpose?

People ask Google everything under the sun. One of the most commonly searched questions in the world is “How do I get rid of hiccups?” Allow us at SciShow to explain.

When it comes to what you bite, chew and swallow, your choices have a direct and long-lasting effect on the most powerful organ in your body: your brain. So which foods cause you to feel so tired after lunch? Or so restless at night? Mia...

Why do I really, really want ice cream right now? Today we explore the science of food cravings!

Paul Andersen explains the importance and structure of nucleic acids. He begins with an introduction to DNA and RNA. He then describes the important parts of a nucleotide and shows how they are connected through covalent and hydrogen...

What do you get when you combine the strongest materials from the plant world with the most elastic ones from the insect kingdom? Super-performing materials that might transform ... everything. Nanobiotechnologist Oded Shoseyov walks us...

Hank talks about a sweet-tasting substance we humans just love - where it comes from, why we need it and how we could maybe stand to love it a little less.

It might sound like science fiction, but if you press on a crystal of sugar, it will actually generate its own electricity. This simple crystal can act like a tiny power source because sugar happens to be piezoelectric. Ashwini...

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

We love carbonated drinks, but they also get a bad rap. What does bubbly water do to our body? Is it really bad for us?

From daffodils to dangerous snakes, toxins are everywhere. Here's a collection of episodes about our favorite poisonous, venomous, and generally toxic organisms.

In a zippy demo at TED U, AnnMarie Thomas shows how two different kinds of homemade play dough can be used to demonstrate electrical properties -- by lighting up LEDs, spinning motors, and turning little kids into circuit designers.

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.

When a team of archeologists recently came across some 15,000-year-old human remains, they made an interesting discovery: the teeth of those ancient humans were riddled with holes. So what causes cavities, and how can we avoid them? Mel...