SciShow
Astronauts Need a Better Sunscreen
Space is a dangerous place. One of the many dangers comes in the form of radiation. On Earth, sunscreen helps shield our bodies. But astronauts on the ISS, or eventually on the Moon/Mars/etc., will have to be rocking some suped-up sunblock.
SciShow
7 Bizarre Uses for Animal Secretions
You're probably aware of lots of the things we take from animals, but for centuries, humans have been sneaking animal secretions into a bunch of things you probably didn't know about, like your Easter candy, your Mom's perfume, and even...
SciShow Kids
Let's Explore Caves! | SciShow Kids Compilation
Squeaks, Jessi and Anthony are spending a bunch of time learning all about the wonders of caves in this compilation video!
SciShow Kids
The Amazing Adaptations of Cave Animals! | Let's Explore Caves! | SciShow Kids
Mister Brown and Squeaks are visiting Sam the Bat's family in their cave! Now, animals that live in caves are pretty special. Since caves are really dark, the animals that live there can't use eyes to see where they are going, so they...
SciShow Kids
Why Don’t Animals Need Sunscreen?
You should always wear sunscreen when you're playing outside, but you may have noticed that animals are outside all the time and they don't need sunscreen. Why?
SciShow Kids
Animal Slime and Other Weird Stuff
Ever wonder why some animals don't need sunscreen or how they can live in dry climates without water? Well, some of them can use the slime their bodies produce in weird and helpful ways!
SciShow
Sunburns, Sunbeams, and Sunspots: A Summer Compilation
We're enjoying the summer here in Montana, and to help celebrate we thought we'd put together a compilation of our favorite sun-related episodes from our past. Don't worry, you won't need sunglasses for this one!
SciShow
The Strange Case of the Missing Sunscreen Gene
If you've ever spent too much time in the sun and forgotten to put on sunscreen, you know how painful a sunburn can be. But for some animals, forgetting the sunscreen wouldn't be a problem because they can just produce their own!
SciShow
SPF Doesn't Mean What You Think It Means
SPF seems pretty simple. Find a high number, rub some on your nose, and you're ready for some sunshine. Unfortunately the science behind it is a little more complicated.
SciShow
What Does SPF Mean?
Sunscreen comes in different levels of SPF, or sun protection factor, but what does that mean for your skin and the ultraviolet radiation hitting it? Olivia explains the science of SPF.
SciShow
What’s Up With Those Bright Blue Eggs?
It seems like birds would want to hide their eggs, but there are hundreds of species that lay blue to blue-green eggs. Thanks to some clever experiments, we’re finally starting to understand why birds might benefit from conspicuously...
TED Talks
Carson Bruns: Could a tattoo help you stay healthy?
Can we make tattoos both beautiful and functional? Nanotechnologist Carson Bruns shares his work creating high-tech tattoos that react to their environment -- like color-changing ink that can tell you when you're getting a sunburn -- and...
SciShow
Can You Get a Sunburn Behind a Window?
If you’re not lounging on the beach on a hot summer day, why would you think to put on sunscreen? Well, you might need sunscreen more often than you think.
TED-Ed
TED-ED: Is radiation dangerous? - Matt Anticole
When we hear the word radiation, it's tempting to picture huge explosions and frightening mutations. But that's not the full story - radiation also applies to rainbows and a doctor examining an X-ray. So what is it, really, and how much...
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
Should I Wear Sunscreen in the Winter?
DNA damage doesn't just happen in the summer, but does that really mean we should wear sunscreen in the cloudy and chilly months?
SciShow
Can Plants Get Sunburned?
Plants need sunlight to live, but they also need to block the sun's more harmful rays. Plants can't put on sunscreen or find shade, so how do they avoid getting a gnarly sunburn?
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
Algae Might One Day Rule the World
Algae is one of the oldest and most abundant forms of life on planet Earth, so it only makes sense that it offers a ton of solutions to unsustainable modern problems. Here are five ways in which algae continues to reshape the world.
TED-Ed
TED-ED: The science of skin color - Angela Koine Flynn
When ultraviolet sunlight hits our skin, it affects each of us differently. Depending on skin color, it'll take only minutes of exposure to turn one person beetroot-pink, while another requires hours to experience the slightest change....
Bozeman Science
Stratospheric Ozone
In this video Paul Andersen explains how stratospheric ozone protects humans from ultraviolet light. He explains how stratospheric ozone is formed when diatomic oxygen absorbs an ultraviolet photon and is split into two free oxygen...
SciShow Kids
Why Should You Wear Sunscreen?
Jessi and Squeaks are ready to go outside, but before they do, Jessi needs to make sure to put on sunscreen so that she doesn't get a sunburn!
Wonderscape
The Ozone Layer: Earth's Natural Sunscreen Under Threat
Explore how chemicals like chlorofluorocarbons (CFCs) impact the ozone layer, which acts as the Earth's natural sunscreen by absorbing harmful ultraviolet rays. Understand the environmental consequences of ozone depletion, including...