SciShow
Why Does Your Stomach Make Noises?
Your digestive system makes weird noises sometimes. You can't really stop it from happening, but you can find out why it happens in the first place!
Crash Course
Biological Molecules - You Are What You Eat: Crash Course Biology
Hank talks about the molecules that make up every living thing - carbohydrates, lipids, and proteins - and how we find them in our environment and in the food that we eat.
Crash Course
Animal Behavior - CrashCourse Biology
Hank and his cat Cameo help teach us about animal behavior and how we can discover why animals do the things they do.
TED Talks
TED: The future of the food ecosystem -- and the power of your plate | Ndidi Okonkwo Nwuneli
Many people across the world don't have access to healthy food -- while in other places tons of food go to waste. Social entrepreneur Ndidi Okonkwo Nwuneli thinks we can take bold steps to fix this problem. She lays out what it would...
TED Talks
TED: The surprising science of alpha males | Frans de Waal
In this fascinating look at the "alpha male," primatologist Frans de Waal explores the privileges and costs of power while drawing surprising parallels between how humans and primates choose their leaders. His research reveals some of...
TED-Ed
TED-ED: Should we eat bugs? - Emma Bryce
What's tasty, abundant and high in protein? Bugs! Although less common outside the tropics, entomophagy, the practice of eating bugs, was once extremely widespread throughout cultures. You may feel icky about munching on insects, but...
SciShow
Why Crocodiles Have an Extra Hole in their Heart
Crocodiles have four-chambered hearts, just like we do! But, while our hearts do just fine with four valves, they have a slightly different approach…
SciShow
Why Does Toothpaste Make Everything Taste Bad?
Have you ever noticed that toothpaste makes some yummy foods, like orange juice, taste awful? QQ explains!
SciShow
What Does Carbonated Water Do to Your Body?
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?
Crash Course
How We Got Here: Crash Course Sociology
So we know that sociology is the study of society, but what exactly *is* a society? Today we’re going to find out. We’ll look at Gerhard Lenski's classification of societies into five types, and the technological changes that turn one...
SciShow Kids
The Biggest Flower in the World!
Squeaks wants to know more about the biggest flower in the world! So Mister Brown teaches him all about this stinky, weird plant - called Rafflesia arnoldii!
Disciplinary Core Idea:
LS2.A: Interdependent Relationships in Ecosystems -...
Crash Course
Foreign Aid and Remittance: Crash Course Econ
What is foreign aid? How much foreign aid does the United States distribute each year. Comparatively, not much. In fact, foreign aid only accounts for a small fraction of most nations' overall spending. But it's hugely important. Foreign...
SciShow
Do You Need a Copper Pot?
Some chefs swear by copper pots and pans, but they are much more expensive than other materials. Are they worth it? Well, it all comes down to electrons!
TED Talks
TED: The case for fish farming | Mike Velings
We're headed towards a global food crisis: Nearly 3 billion people depend on the ocean for food, and at our current rate we already take more fish from the ocean than it can naturally replace. In this fact-packed, eye-opening talk,...
SciShow Kids
Odd Facts About Sloths
Sloths might be slow and spend much of their time sleeping, but they’re definitely not boring. Jessi shares three weird facts about sloths!
SciShow Kids
Why Is Fire Hot?
Whether you're out camping, cooking, or snuggled up in front of your fireplace, you know that fire is hot! But why? Join Jessi and Squeaks to learn how fires turn wood or other fuel into useful heat!
SciShow
Why Is My Pee Green?
How worried should you be when your urine isn't yellow, but instead it's green, red, or even black?
SciShow
Who Will Survive The 6th Mass Extinction
Some scientists say we’re in the midst of Earth’s sixth mass-extinction event, caused entirely by us. But some animals have a knack for surviving in a human-dominated world. What’s their secret?
TED-Ed
TED-ED: Mating frenzies, sperm hoards, and brood raids: the life of a fire ant queen - Walter R. Tschinkel
In the spring, just after a heavy rainfall, male and female fire ants swarm the skies for a day of romance, known as the nuptial flight. Thousands of reproduction-capable ants take part in a mating frenzy, and for one successfully mated...
TED-Ed
TED-ED: How do we smell? - Rose Eveleth
An adult human can distinguish up to 10,000 odors. You use your nose to figure out what to eat, what to buy and even when it's time to take a shower. But how do the molecules in the air get translated into smells in your brain? Rose...
SciShow
Miracle Fruit: How to Trick Your Taste Buds
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.
SciShow
Why Is Salt So Bad for You, Anyway?
You've probably been told that eating too much salt is bad for you, especially if you have high blood pressure. But what exactly does salt do to our bodies that can make it so hard on our hearts?
TED-Ed
What causes cavities? - Mel Rosenberg
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...
SciShow
Can You Really Cook Alcohol Out of Food?
You’ve probably heard that it’s no big deal when a cake recipe calls for some rum, because all the alcohol will just cook right off! Well, that's only partly true.