Chemistry

Today You Should Know answers your curious questions about how the world works. Here's everything we've covered (so far) on the topic of chemistry. Whether you're interested in how coffee is decaffeinated or what “natural flavors” means, there will definitely be something that satisfies your curiosity about how the world works.

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How does Drano work?
How does Drano work?

🔥 + 🫧 = 🚰

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Why does salt make food taste better?
Why does salt make food taste better?

Our least bland article yet

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How does carbon dating work?
How does carbon dating work?

Swipe right for science.

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Does soap need bubbles to clean?
Does soap need bubbles to clean?

I hate to burst your bubble…

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How do fireworks work?
How do fireworks work?

Our most explosive article yet

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What do antioxidants do and why do we need antioxidants if we need oxygen to survive?
What do antioxidants do and why do we need antioxidants if we need oxygen to survive?

Take a deep breath and then dive into the biochemistry that keeps you trucking along.

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What is vinegar and how does vinegar preserve food?
What is vinegar and how does vinegar preserve food?

And what exactly is the “mother” of vinegar?

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How are cosmetic expiration dates determined?
How are cosmetic expiration dates determined?

It turns out the U.S. has more of a “you do you” approach to consumer safety regulation.

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Why does frying in oil make food crispy?
Why does frying in oil make food crispy?

If you've ever wondered why your food tastes so good when it's cooked in oil, it's because of a little thing called heat transfer.

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Why do candles smoke when blown out?
Why do candles smoke when blown out?

What if I told you the smoke is actually vaporized wax?

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How is vegetable oil made?
How is vegetable oil made?

It’s greasy work.

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How do thermal printers work?
How do thermal printers work?

Heat + ink + paper = receipt

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How is coffee decaffeinated?
How is coffee decaffeinated?

There’s no such thing as a coffee bean without caffeine.

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Why does helium make your voice higher?
Why does helium make your voice higher?

Read this one in a chipmunk voice.

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What does "natural flavors" mean?
What does "natural flavors" mean?

They’re technically derived from natural sources, but they’re usually not 100% natural.

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How does dry cleaning work?
How does dry cleaning work?

The first thing you should know is that dry cleaning is not dry.

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How is non-alcoholic beer made?
How is non-alcoholic beer made?

99 bottles of buzz-free beer on the wall, 99 bottles of beer!

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