Topic: Biosciences

This video explains chemistry behind why soap is effective against viruses like COVID-19.

In this video, find out why shark repellent was developed for decades… but didn’t work.

Today we’re going to test how well you can tell a perfectly safe Mushroom from the poisonous ones.

In this episode, we break down a few options on what to do with your body after you die.

Watch some cartoons with our host Sam and learn whether their chemistry checks out.

Happy Holidays! Kick back, relax and enjoy our chemistry-themed yule log trivia video!

We gave PBS hosts random foods, to see if the miracle berries taste has any limits.

In this episode, we break down the chemistry of cryogenic and reanimating a frozen corpse.

Get ready to wow your friends as we use chemistry to create delicious roasted potatoes.

This episode breaks down the chemistry behind what makes these adorable critters deadly.

This Halloween season, we unpack the chemistry of the vampires.

In this episode of Reactions, learn how you, too, can make magnetic and colored slime!

In this episode: whip out your phones, start Googling to see some quick stain removal tips.

In this video, we talk about “superhero strength” and the chemistry behind what’s possible.

This episode shows some products that could cause dangerous side effects to birth control.

This episode shows why 500,000 people in the U.S. get sick after taking antibiotics.

This episode shows how firefighters are using fertilizer to keep dangerous blazes at bay.

This video explains the effects of overdosing.

In this Reactions video, we break down our top five strangest poisons you’d least expect.

This video shows why getting freshwater from ocean water is harder than you think.

In this video, find out great lengths used to make gunpowder during the Revolutionary War.

This video shows what ringworm is, how it feeds on skin and how to not be its next meal.

In this video, we use science to see if using Cannabidiol, (CBD) make you fail a drug test?

In this episode, discover what makes carbon the backbone of all forms of life on Earth.

In this video, we explain how this springtime scent may be plants chemical cry for help.

In this video we’ll learn how paper and a few drops of urine tells you if you’re pregnant.

In this video, we examine weaponized hot sauce and what to do if you spray yourself.

In this episode, we take a closer look at the compounds in the nasty-smelling skunk spray.

In this video, we’re going to debunk some myths behind the many different types of tea.

This episode explores a wide range of chemical tricks behind colorful bird feathers.

In this episode, you’ll learn the chemistry being used to make the perfect dog food.

In this video, you’ll learn everything you’re dyeing to know about artificial hair color.

In this video, you're about to find out if death by toilet bowl cleaning can really happen.

Ms. Beautyphile helps us tackle the science behind perms and overall big 80s hair.

Why does white chocolate so unique from the dark chocolates we know and love so well?

Reactions and Ms. Beautyphile explain, the chemistry of shaving creams.

This video shows flamingos are the most hardcore animals on the planet and theyà ¢ re pink.

This video shows why aspirin works in a baby-sized dose, but doesnâ t work for pain relief.

In this video we ask, what makes kimchi sour, spicy, yet surprisingly rich and buttery?

The holiday, enjoy this compilation video of Thanksgiving turkey chemical deliciousness!

In this video, learn how leather is made using techniques that are thousands of years old.

This episode debunks the myth that birds getting hurt by rice thrown at weddings.

In this episode, we explore how astronauts survive the deadly radiation of deep space.

This episode explains why you catch more flies with honey than with vinegar.

How can a tardigrade survive practically anywhere? The secret comes down to chemistry.

This week on Reactions, we explain the chemistry of drug expiration dates.

This week, we ask: can the power of silver combat sweat smells from your workouts?

Reactions explains the chemistry of the film that protects your eyes when you wake up.

Yellowstone hot springs have incredible geochemistry, but why are they so dangerous?

The episode shows chemistry of cooking food using a rice cooker and other kitchen gadgets.

This episode analyses cheeses so stinky they’re banned on public transit in France.

We’re trying again to change hydrangea, since it didn’t work in an earlier episode.

In this video about preserving food, learn about the smelliest food from the experts.

This episode shows how savvy gardeners can fine-tune the color of their hydrangea blooms.

We asked writer Sam Kean, are we breathing air molecules that were once exhaled by Caesar?

In this video, we explain how crumbly chalk and tough seashells are made of the same stuff.

In this video, we use chemistry to see what makes cake donuts different from yeast donuts.

In this episode, learn about nanotechnology and the chemistry of color-changing lizards.

We visit St. James Cheese Company in New Orleans to learn how milk becomes cheese.

How does Melatonin work? In this video, we go into the chemistry of this sleep aid.

In this episode, we’re talking the science of airbags protect you in a car accident.

This week in celebration of Earth Day, we talk about the chemistry of methane hydrates as a source of energy and a climate change threat.

In this video, we’re explaining the science of flame jetting and the dangers this ten-foot fireball can cause to students and teachers.

Did you know that tree-ripened olives are not black but green? In this video, we break down the chemistry of these salty, oily stone fruits.

In this episode, we explain the chemistry of petrichor, a sweet smell in the air after it rains during a spring shower.

How do you recover gold that’s been dissolved in acid? How do we know the half-life of uranium? We take on your burning chemistry questions.

Cows burp up a lot of methane, a greenhouse gas that has huge climate change consequences. In this video, we uncover some gassy science.

We all love detective TV shows, like CSI Miami and Magnum P.I. In this episode, we’ll show what really happens in forensics science lab.

These black preserved eggs don’t look like food, but in this episode we’ll show how chemistry turns century eggs into a Chinese comfort food.

Thanks to our amazing fans for asking! Got more chemistry questions? Drop ‘em in the comments and we might answer them in future episodes.

Bakers on TV are always talking about gluten, like it’s some kind of monster hiding in your bread. So is it gluten good, or bad for you?

Watch as Reactions uses some acid know-how to tell a chemistry detective story and sort real gold from the imposters.

Reactions tackles the keto diet fad that never dies—The science that goes on with cutting out carbohydrates.

What is it about this little plant that makes Cilantro is one of the most polarizing herbs the planet? The answer's in the chemistry folks!

Whether or not you have anxiety, you’ve probably heard of Xanax. But what’s in this popular and widely prescribed drug, and how does it work?

We're taking a closer look at hand sanitizers, what this goo is made of, and just how effective it really is against viruses and bacteria.

Eggs are edible and incredible, so we've got three kitchen egg demos that will bounce and colorize you into total chemical bewilderment!

Jacques Dubochet, Joachim Frank, and Richard Henderson are the 2017 Nobel Prize winners for their development of cryo-electron microscopy.

The space probe has uncovered chemical mysteries on the moon Titan that will keep scientists busy for years to come.

The products we use every day leave behind chemical footprints. Learn how and why researchers are now studying those trails.

Going from Earth to Mars? Recycling is an astronaut’s best friend. We're looking at new uses for pee that flows farther than drinking water!

What’s the difference between fluorescence and bioluminescence? We illuminate the biochemical distinctions.

Chemists have found fantastic drugs in in nature, like the blood from the Komodo dragon that could save your life.

In honor of St. Paddy's Day, we decided to take a closer, chemical look into what makes redheads stand out from the crowd.

Pond scum is usually just a nuisance, but it can become dangerous. Check out the chemistry behind these harmful algal blooms.

A waiter walks by with a plate of your favorite food, and your mouth starts to water. But why? 2015 ACS Chemistry Champions winner Hadi Fares explains the chemistry behind dinnertime drooling.

Thanks to chemistry, the products we use to style our hair has evolved over the years. But how do hairsprays protect your hair while keeping it flexible and light?

How do shampoos work? “Ms. Beautyphile” Trina Espinoza and Lex Fleming from “Made U Look” explain the science behind hair care.

Why are some people choosing to dump the lather altogether? “Ms. Beautyphile” Trina Espinoza and Lex Fleming from “Made U Look” explain the science behind hair care.

Happy New Years folks! Just in case you celebrate a little too hard, we're offering you some chemistry tips to stave that hangover and to help you get a better start on your resolutions.

For folks with seasonal affective disorder, the changing seasons can make them sadder than most, to the point of depression. Why does this happen and what are some possible treatments?

You have probably had the burning sensation of eating a jalapeno pepper. But what causes this painful fire in your mouth and why does drinking milk relieve the pain?

In celebrating Thanksgiving, we've put together a video on a new horizon of creating fake meats that taste and feel just like the real thing and way better for the environment.

Nanomachines are many orders of magnitude smaller than a human cell, but they have huge promise. In the future, they could deliver drugs anywhere in the body, clean up oil spills and might even be used as artificial muscle cells.

You might not believe it, but there was a time when urine helped shape the modern world. Reactions looks at the reasons why pee was once the “number one” material in chemistry.

When we stink, we have deodorants and antiperspirants to help us, but how do these products actually work? This week, we're talking body odors, and how we drape a tarp over them with chemistry.

In support of National Recovery Month, which calls attention to substance abuse issues and treatment services, Reactions takes a look at the chemistry behind addiction.

We explain the original way the Fantastic Four got their power – radiation – with help from SciPop Talks.

If you don’t have a tattoo, you probably at least know someone who does. In this video we explore what tattoo ink is made of, why this body art is permanent and other cool facts.

In this week’s Reactions video, we answer all your foot-focused questions and share some tips to stop the smell.