Be Smart
The Great Oxygenation
New ReviewLife’s been around on Earth for at least 3.7 billion years. But for most of that time, it was incredibly boring — just simple little cells squirming around in water. It only got interesting in the last few hundred million years. And that...
SciShow
How Safe Are Food Preservatives, Really?
You may have seen some unpronounceable words or weird abbreviations in your food's ingredient lists before, but have you ever wondered why that stuff gets added into your snacks? It's not just for fun, those preservatives are all there...
Crash Course
Multicellular Function: Why We Aren’t Just One Big Cell: Crash Course Biology #41
There are countless types of plants and animals on Earth, but how do they work? In this episode of Crash Course Biology, we’ll take a bird’s eye view of how multicellular life functions, including how it’s organized, how it regulates...
SciShow
What Is Taurine and Why's It in My Energy Drink?
Energy drinks- you've had them, or at least you're well aware of their presence in today's culture. But what is actually in these things? Especially the mysterious ingredient TAURINE?
SciShow
We're One Step Closer to Understanding Aging
Scientists have had a variety of hypotheses about how chemical stress can affect DNA to cause aging, but a new study has just shown the process in action. Hosted by: Hank Green
SciShow
Does Anti-Aging Cream Work?
You can't open up a magazine without seeing someone with impossibly smooth skin selling some sort of "anti-aging" cream, but could some of these products actually work?
SciShow
Are Antioxidants Actually Good for Anything?
There's evidence that antioxidant-rich diets have health benefits in humans, but the antioxidant chemicals and enzymes seem to be only part of the puzzle.
SciShow
Why Can’t We Figure Out What Causes Chemo Brain?
Chemotherapy can make patients much more forgetful than normal, but pinning down the cause of and solution to this phenomenon is an ongoing process.
SciShow
Do We Have To Give Up Bacon?
The IARC has categorized processed meat as a definite carcinogen. But how dangerous is it really? Do we finally have to give up bacon?
SciShow
Why Is Sperm Count Dropping?
Sperm count in Western countries has been dropping for over a hundred years, and scientists have some ideas as to what’s behind this swimmer shortage.
SciShow
The Truth About 5 Health Food Trends | Compilation
We humans love a good health food trend, but sometimes it can be hard to sort out the facts from the fiction. So over the years, we here at SciShow have hit up the research and set the record straight.
SciShow
9 Animals That Will Outlive Us
Lack of food, no sunlight and nuclear disaster might mean the end of the world for humans, but these 9 animals just might make it.
SciShow
How an Ancient Remedy Became a Modern Cure for Malaria
In the 1960s drug-resistant strains of malaria emerged, making the disease even deadlier than before. Then, pharmaceutical scientist Tu Youyou discovered a promising new remedy buried within the pages of ancient Chinese texts.
Bozeman Science
Lewis Diagrams and VSEPR Models
In this video Paul Andersen explains how you can use Lewis Diagrams and VSEPR Models to make predictions about molecules. The Lewis diagrams are a two-dimensional representations of covalent bonds and the VSEPR models show how the...
SciShow
From Your Head to Your… Anus: The Truth About Hair | Compilation
Whether you’ve got a lot of hair or absolutely none, it’s one of those things all of us have thought about at some point. And we’ve ended up with some… questions.
SciShow
Will Stress Really Make You Go Gray?
Just like the myth that plucking one gray hair will make three sprout, stress making your hair white isn't actually a thing. Or is it?!
SciShow
Animals Inspiring the Armor of the Future
Organisms have evolved many clever forms of armor so that they can be ready for whatever nature throws at them. And us flimsy humans can learn to enhance our armor by taking inspiration from some of these creatures, and not necessarily...
TED-Ed
TED-Ed: Are food preservatives bad for you? - Eleanor Nelsen
Food doesn't last. In days, sometimes hours, bread goes moldy, apple slices turn brown, and bacteria multiply in mayonnaise. But you can find all of these foods out on the shelf at the grocery store " hopefully unspoiled -- thanks to...
SciShow
6 'Undetectable' Poisons (and How to Detect Them)
Poisoning has always been a popular method of getting rid of one’s enemies, but is there actually a “perfect” poison capable of being completely undetectable? Here are 6 of the poisons that have confounded doctors throughout history!
...
Crash Course
Polymers - Crash Course Chemistry
Did you know that Polymers save the lives of Elephants? Well, now you do! The world of Polymers is so amazingly integrated into our daily lives that we sometimes forget how amazing they are. Here, Hank talks about how they were developed...
Curated Video
Creamy pea soup and With cheese croutons
Creamy pea soup and with cheese croutons a wonderful, creamy pea soup, a must try for pea soup lovers!
Curated Video
Minestrone
Hearty and nutritious, minestrone soup is a tasty crowd-pleaser and is super-easy to tweak according to the vegetables you have in the house.
Curated Video
What Are Antioxidant Vitamins?
Howcast - Learn about antioxidant vitamins in this Howcast video