Season 1

Video thumbnail: Reactions How Do Hand Sanitizers Work?

Reactions

How Do Hand Sanitizers Work?

How effective is it against viruses and bacteria?

How Do Hand Sanitizers Work?

Video thumbnail: Reactions How Do We Know How Old the Earth Is?

Reactions

How Do We Know How Old the Earth Is?

Geologists deduced the age of the Earth thanks to a handful of radioactive elements.

How Do We Know How Old the Earth Is?

Video thumbnail: Reactions 7 Wine Facts & Myths

Reactions

7 Wine Facts & Myths

Wine snobs use all sorts of rituals to bring out the best flavor. But do they really work?

7 Wine Facts & Myths

Video thumbnail: Reactions Why is the Statue of Liberty Green?

Reactions

Why is the Statue of Liberty Green?

Her color change is thanks to about 30 years’ worth of chemistry in New York City's air.

Why is the Statue of Liberty Green?

Video thumbnail: Reactions Vertical Farming

Reactions

Vertical Farming

We can now stack our fields vertically. Let's see the chemistry that makes it possible.

Vertical Farming

Video thumbnail: Reactions The Universe in a Cup of Coffee

Reactions

The Universe in a Cup of Coffee

The chemistry of the universe is, in a way, in your morning cup of coffee.

The Universe in a Cup of Coffee

Video thumbnail: Reactions Let's Settle This: How to Care for Cast-Iron

Reactions

Let's Settle This: How to Care for Cast-Iron

We're using chemistry to prove the right way to season and treat a cast-iron skillet.

Let's Settle This: How to Care for Cast-Iron

Video thumbnail: Reactions Can I Still Eat This?

Reactions

Can I Still Eat This?

Explore the chemistry/science of expired foods and how expirations dates are lying to us.

Can I Still Eat This?

Video thumbnail: Reactions You're Cleaning Your Contacts Wrong, Probably

Reactions

You're Cleaning Your Contacts Wrong, Probably

99% of adults who wear contacts break some major lens care rules.

You're Cleaning Your Contacts Wrong, Probably

Video thumbnail: Reactions How Do Snowflakes Form?

Reactions

How Do Snowflakes Form?

Using crystallography, scientists have learned a lot about the structure of snowflakes.

How Do Snowflakes Form?

Video thumbnail: Reactions Did You Know Honey is Really Bee Puke?

Reactions

Did You Know Honey is Really Bee Puke?

Take a look at the chemistry and science that happens in bees stomachs to produce honey.

Did You Know Honey is Really Bee Puke?

Video thumbnail: Reactions That Red in Your Steak Isn't Blood

Reactions

That Red in Your Steak Isn't Blood

Here are some chemistry backed tips to make your meat as perfectly grilled as possible.

That Red in Your Steak Isn't Blood

Video thumbnail: Reactions How Does Adderall™ Work?

Reactions

How Does Adderall™ Work?

How does amphetamine, the active ingredient in Adderall, work?

How Does Adderall™ Work?

Video thumbnail: Reactions Why Are Avocados So Awesome?

Reactions

Why Are Avocados So Awesome?

Let's take a look at the chemistry behind our most beloved fruit; avocados.

Why Are Avocados So Awesome?

Video thumbnail: Reactions What Happens When You Eat Too Much?

Reactions

What Happens When You Eat Too Much?

Here's the chemistry that happens in your body when you eat too much Thanksgiving dinner.

What Happens When You Eat Too Much?

Video thumbnail: Reactions Is it OK to Pee in the Ocean?

Reactions

Is it OK to Pee in the Ocean?

Reactions explains why, environmentally, it is absolutely OK to pee in the ocean.

Is it OK to Pee in the Ocean?

Video thumbnail: Reactions Why Do Dogs Smell Each Other's Butts?

Reactions

Why Do Dogs Smell Each Other's Butts?

Why dogs sniff each other’s butts? Spoiler: it's chemistry.

Why Do Dogs Smell Each Other's Butts?

Support for PBS.org provided by: