SciShow
Big Idea: Gunpowder
Chinese alchemists searching for an elixir of eternal life discovered the world's first chemical explosive. Hank has the full story on gunpowder in this SciShow about a big idea of science.
SciShow
Why Do Workout Drinks Make My Skin Tingle
Ever get a tingling sensation while getting your sweat on? The ingredients to your drink may be why.
SciShow
The First Humans on the Moon
The Apollo 11 mission had many opportunities for things to go awry, and they almost did! Find out how a felt-tipped pen may have saved the lives of the first astronauts on the moon, and more!
SciShow
3 Terrible Old-Timey Ways to (Not) Lose Weight
From sauna pants to fat jigglers, people used to try to lose weight in some rather unconventional ways. They really did not work.
TED-Ed
TED-Ed: Is fire a solid, a liquid, or a gas? - Elizabeth Cox
Sitting around a campfire, you can feel its heat, smell the woody smoke, and hear it crackle. If you get too close, it burns your eyes and stings your nostrils. You could stare at the bright flames forever as they twist and flicker in...
SciShow
Why Can't I Put Metal in the Microwave?
We know we're not supposed to put metal in the microwave, but why? We don't microwave silverware but what about Hot Pocket wrappers? They have metal on the inside. How does that work? Let Michael Aranda explain.
TED Talks
Mike Biddle: We can recycle plastic
Less than 10% of plastic trash is recycled -- compared to almost 90% of metals -- because of the massively complicated problem of finding and sorting the different kinds. Frustrated by this waste, Mike Biddle has developed a cheap and...
SciShow
The Oversized Invasive Carrot That Can Give You Third Degree Burns
All plants get energy from the sun, but the giant hogweed gets another, dangerous superpower from the sun's light: the ability to burn skin with its sap.
SciShow
Litmus Test SciShow Experiments
Do science at home with Hank in this episode of SciShow - you'll learn how to make your own litmus paper, what it's good for, and how it works.
MinutePhysics
What is Fire?
In this episode we explain why fire is red, gas flames are blue, and why you're too cool to glow.
SciShow
Why Do Some People Tolerate Spicy Food?
Some people can eat raw jalapeños like they're apples. Why do some people have a high tolerance for spicy food while others can't stand it?
SciShow
Space Trash: The Next Big Pickle
Earth's orbit has a bit of a litter problem. Hank outlines a few ways scientists have thought of to help clean things up.
SciShow
Zombie Fires Are on the Rise
Fire seasons can be bad enough on their own, but it turns out sometimes forest fires that appeared to be dead, turn out to have just been lying in wait.
TED-Ed
TED-Ed: Why do we have to wear sunscreen? - Kevin P. Boyd
You already know that a trip to the beach can give you a nasty sunburn, but the nitty gritty of sun safety is actually much more complex. Wrinkle-causing UVA rays and burn-inducing UVB's can pose a serious risk to your health (and good...
SciShow
The Science of Wildfires
So, what is fire, exactly? What causes fires in the wild, and how do we put them out? SciShow answers your burning questions about the science of fire. (See what we did there?)
SciShow
Can You Burn Metal?
You know metal can get really hot, and you probably know that it can melt. But can it burn? Hank shows you how you can burn a hunk of metal like you're some kinda superhero (just be careful, please), and he explains how, in chemistry,...
SciShow
Why Don't We Throw Trash in Volcanoes?
We have a garbage problem. Wouldn't it make sense to throw that trash into the nearest volcano?
SciShow
Do Fat Cells Ever Really Go Away?
Okay- you lost weight, but what actually happened to those fat-storing cells?
SciShow
3 Ways Your Sun Protection Can Backfire
People have a lot of ideas about how they can protect themselves from the sun’s ultraviolet radiation, but many of those ideas just don’t hold up, and some make things worse!
TED-Ed
TED-Ed: Which sunscreen should you choose? - Mary Poffenroth
Sunscreen comes in many forms, each with its own impacts on your body and the environment. With so many options, how do you choose which sunscreen is best for you? To answer that question, Mary Poffenroth explains how sunscreens work and...
SciShow
6 Popular "Home Remedies" That Don't Actually Work
Studies have found that even some of the most well-known home remedies don’t work, and sometimes they do more harm than good. Chapters HONEY FOR ALLERGIES BUTTER ON THERMAL BURNS 2:15 VINEGAR FOR HEAD LICE 4:42 4 IPECAC FOR POISONING...
SciShow
Most Metabolism Boosters Are BS
Despite some bold claims, most supplements can’t really "boost" your metabolism, and the actual changes we can make to it are pretty limited.
SciShow
How to Build a Rocket Engine in Your Kitchen (Experiment Episode)
Hank demonstrates how to build a hybrid rocket engine in your kitchen!
SciShow
How to Make a Meteor Shower
Learn about how one Japanese startup wants to offer meteor showers on demand, and how this will affect our scientific study of the mesosphere.