Season 2

Video thumbnail: Reactions How is Leather Made?

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How is Leather Made?

How does animal hide become leather?

How is Leather Made?

Video thumbnail: Reactions Fact or Fiction: Uncooked Rice is Bad for Birds

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Fact or Fiction: Uncooked Rice is Bad for Birds

Throwing rice at weddings won't hurt birds--and we can prove it with chemistry.

Fact or Fiction: Uncooked Rice is Bad for Birds

Video thumbnail: Reactions Do Astronauts Need Sunscreen?

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Do Astronauts Need Sunscreen?

How do astronauts survive the deadly radiation of deep space?

Do Astronauts Need Sunscreen?

Video thumbnail: Reactions How Do You Catch Fruit Flies?

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How Do You Catch Fruit Flies?

The chemistry behind why fruit flies love vinegar so much.

How Do You Catch Fruit Flies?

Video thumbnail: Reactions Turning the Boston Harbor into Actual Tea

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Turning the Boston Harbor into Actual Tea

How Much Tea Would it Take to Turn the Boston Harbor into Tea?

Turning the Boston Harbor into Actual Tea

Video thumbnail: Reactions What is Natto?

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What is Natto?

It’s a much-loved, protein-packed Japanese food standby made of slimy, stinky soybeans.

What is Natto?

Video thumbnail: Reactions Can Silver Nanoparticles Combat Your Stink?

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Can Silver Nanoparticles Combat Your Stink?

Clothing makers are harnessing the power of silver to combat workout stink. Does it work?

Can Silver Nanoparticles Combat Your Stink?

Video thumbnail: Reactions What are Eye Boogers?

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What are Eye Boogers?

What’s that stuff in the corner of your eyes when you wake up?

What are Eye Boogers?

Video thumbnail: Reactions How Does Double Acting Baking Powder... Doubly Act?

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How Does Double Acting Baking Powder... Doubly Act?

Why does baking powder say “double acting” on the container?

How Does Double Acting Baking Powder... Doubly Act?

Video thumbnail: Reactions How Plastic Recycling Actually Works

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How Plastic Recycling Actually Works

What happens to plastic bottles when you recycle them?

How Plastic Recycling Actually Works

Video thumbnail: Reactions Can You Take Expired Drugs?

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Can You Take Expired Drugs?

Every medicine you buy has a printed expiration date, but does it actually go bad?

Can You Take Expired Drugs?

Video thumbnail: Reactions Will This Pop a Balloon?

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Will This Pop a Balloon?

Have you ever popped a balloon with just an orange peel?

Will This Pop a Balloon?

Video thumbnail: Reactions Yellowstone Steaming Acid Pools of Death

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Yellowstone Steaming Acid Pools of Death

Yellowstone's hot springs have incredible geochemistry. But why are they so different?

Yellowstone Steaming Acid Pools of Death

Video thumbnail: Reactions How Air Conditioning Works

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How Air Conditioning Works

Air conditioning is the science of heat transfer and the chemistry of refrigerants.

How Air Conditioning Works

Video thumbnail: Reactions 3 Most Useful Kitchen Gadgets - Are They Worth It?

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3 Most Useful Kitchen Gadgets - Are They Worth It?

Do you really need all those kitchen gadgets? It all depends on the chemistry of cooking.

3 Most Useful Kitchen Gadgets - Are They Worth It?

Video thumbnail: Reactions Why Does Stinky Cheese Stink?

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Why Does Stinky Cheese Stink?

It’s the chemistry of washed-rind cheeses that makes these foods so awfully stinky.

Why Does Stinky Cheese Stink?

Video thumbnail: Reactions Hydrangeas and the Science of Do-Overs

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Hydrangeas and the Science of Do-Overs

We tried to use chemistry to change hydrangea flowers from red to blue. Let's try again.

Hydrangeas and the Science of Do-Overs

Video thumbnail: Reactions Surströmming: The Secrets of this Stinky Swedish Fish

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Surströmming: The Secrets of this Stinky Swedish Fish

Surstromming, Swedish for sour herring, has a powerful stink thanks to food preservation.

Surströmming: The Secrets of this Stinky Swedish Fish

Video thumbnail: Reactions How Do Hydrangeas Change Colors?

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How Do Hydrangeas Change Colors?

What does the pH of soil have to do with the color of hydrangeas?

How Do Hydrangeas Change Colors?

Video thumbnail: Reactions Are We Breathing Caesar's Last Breath

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Are We Breathing Caesar's Last Breath

Are you breathing air molecules that were once exhaled by Caesar?

Are We Breathing Caesar's Last Breath

Video thumbnail: Reactions How Seashells Are Made

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How Seashells Are Made

Chalk and seashells are made of the same stuff. So why is one crumbly and the other tough?

How Seashells Are Made

Video thumbnail: Reactions The Ultimate Donut Battle: Cake vs. Yeast

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The Ultimate Donut Battle: Cake vs. Yeast

How does chemistry makes a cake donut and a yeast donut taste so different?

The Ultimate Donut Battle: Cake vs. Yeast