SciShow
Absolute Zero: Absolute Awesome
Hank explains absolute zero: -273.15 degrees Celsius - and the coldest place in the known universe may surprise you.
Crash Course Kids
Oobleck and Non-Newtonian Fluids
Ever heard of Oobleck? How about Non-Newtonian fluids? Well, today Sabrina is going to show us that things can sometimes behave like a solid, and sometimes like a liquid depending on how much force is applied to them. In this episode of...
Crash Course Kids
Vacation or Conservation (Of Mass)
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,...
SciShow
The Poison Squads: The Stupid, Risky First Food Safety Tests
It can be easy to take for granted the fact that there isn’t formaldehyde in your milk.
SciShow
How to Milk a Cockroach
Cow, almond, soy, goat. There are a lot of choices when it comes to milk, but if you're looking for that nutritious boost of vitamins and minerals in the morning, have you considered cockroach milk?
Amoeba Sisters
Diffusion
Explore how substances travel in diffusion with the Amoeba Sisters! This video uses a real life example and mentions concentration gradients, passive transport, facilitated diffusion, and explains why diffusion is critical for all...
TED-Ed
TED-ED: How aspirin was discovered - Krishna Sudhir
4000 years ago, the ancient Sumerians made a surprising discovery: if they scraped the bark off a particular kind of tree and ate it, their pain disappeared. Little did they know that what they'd found was destined to influence the...
SciShow
Nitroglycerin: Explosive Heart Medication
Imagine a substance so powerful that it could blow you to bits or save your life depending on how you used it. Well imagine no more: such a substance exists and you've probably heard of it.
Bozeman Science
Heat Exchange
In this video Paul Andersen explains how energy can be transferred from warmer objects to colder objects through heat. Temperature is a measure of the average kinetic energy of the particles in a substance. When two objects are in...
TED-Ed
TED-ED: The 2,400-year search for the atom - Theresa Doud
How do we know what matter is made of? The quest for the atom has been a long one, beginning 2,400 years ago with the work of a Greek philosopher and later continued by a Quaker and a few Nobel Prize-winning scientists. Theresa Doud...
Bozeman Science
Chemical Change
In this video Paul Andersen explains how chemical differs from physical change. In the laboratory macroscopic observations are used to infer changes at the particulate level. Evidence for chemical change include gas production, change in...
TED-Ed
TED-Ed: The chemistry of cold packs - John Pollard
If you stick water in the freezer, it will take a few hours to freeze into ice. How is it, then, that cold packs go from room temperature to near freezing in mere seconds? John Pollard details the chemistry of the cold pack, shedding...
Crash Course Kids
Organizing Properties
Have you ever thought about all the different kinds of groups you’re a part of? Like, there’s the friends you hang out with and your family, your hockey team, your Crash Course fan club, and that’s just for starters! And even though...
TED-Ed
TED-Ed: The dangers of mixing drugs | Céline Valéry
Which of the following is risky behavior: a person taking cholesterol medicine with grapefruit juice? Or a person taking Acetaminophen before going out for drinks? Or a person on blood thinners who takes an aspirin? Turns out, all of...
MinuteEarth
Why Water Dissolves (Almost) Everything
Water can dissolve more substances than anything else on earth...so why doesn't it dissolve everything away?
SciShow
What's in Those Packets That Say 'Do Not Eat' (And Why Shouldn't I Eat It)
Quick Questions explains what’s in those little packets you find in packaged food, bottles of pills, and leather goods, and why you should do what the label says and not eat them.
Crash Course
Network Solids and Carbon: Crash Course Chemistry
In this episode, Hank talks about Network solids and Carbon and how you can actually create a Diamond from plain old Carbon... well, YOU probably can't unless you own a bunch of elephants. It's a long story. BUT, within you will learn...
Crash Course
Water - Liquid Awesome: Crash Course Biology
Hank teaches us why water is one of the most fascinating and important substances in the universe.
Crash Course Kids
Chemical Changes
We've talked about mixtures and solutions, solutes and solvents, but what about things that can't be undone? What about Chemical Changes? Would it surprise you to know that baking a cake is a Chemical Change? Or striking a match? In this...
SciShow
If Theres Acid Rain Is There Basic Rain
You've probably heard of acid rain: rain that's more acidic than normal because of pollution in the atmosphere. But, if rain can become more acidic, shouldn't it also be able to become more basic?
SciShow
6 Times Scientists Radically Misunderstood the World
Science has come a long way in understanding how our universe works and that road has been full of wrong turns and dead ends. Here are 6 scientific explanations that turned out to be way off track. Chapters 1 SPONTANEOUS GENERATION 1:49...
MinuteEarth
The Bird Poop That Changed The World
Thanks to my grandmother for inspiring this story, and to my mother for helping make it. Bird poop was the gateway fertilizer that turned humanity onto the imported-chemical-based farming system of modern agriculture....
Bozeman Science
Physical and Chemical Changes
Mr. Andersen explains the difference between physical and chemical changes. A brief discussion of chemical reactions and equations is also included.
TED-Ed
TED-Ed: How mucus keeps us healthy - Katharina Ribbeck
Your body produces more than a liter of mucus every day, and when you're sick, it can be hard to miss. But what exactly is mucus? And what does it do, besides making you miserable? Katharina Ribbeck reveals the mysteries of this...