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Articles on Curious Kids US

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Biases against certain groups of people can escalate into acts of violence if left unchecked. Paul Taylor/Stone via Getty Images

Why do people hate people?

It can be easy to mistake feelings like fear and anger as hate. When biases are acted out in harmful ways, however, speaking up can help stop hate from getting worse.
Thinking builds neural networks, which is why practice improves performance. Francesco Carta fotografo/Moment via Getty Images

How does the brain think?

Eating right, exercising, playing sports, reading and journaling are just a few of the ways you can keep your brain in top shape.
I feel a song coming on … Paul Starosta/Stone via Getty images

Why don’t female crickets chirp?

Only male crickets have wing structures that produce sound, but females are very good at following the signal.
The number zero was a relatively recent and crucial addition − it allows numbers to extend in both directions forever. pixel_dreams/iStock via Getty Images Plus

From thousands to millions to billions to trillions to quadrillions and beyond: Do numbers ever end?

Here’s a game: Tell a friend to give you any number and you’ll return one that’s bigger. Just add ‘1’ to whatever number they come up with and you’re sure to win.
The Punch Powertrain Solar Team car from Belgium competes in the 2017 World Solar Challenge near Kulgera, Australia. AP Photo/Geert Vanden Wijngaert

Why aren’t there solar-powered cars?

It’s common to see solar panels on rooftops and fields, but they aren’t widespread on cars − yet.
The queen, on the right with a larger, darker body, is bigger than the worker bees in the colony and lives several times longer. Jens Kalaene/picture alliance via Getty Images

Why do bees have queens? 2 biologists explain this insect’s social structure – and why some bees don’t have a queen at all

A queen’s main job in the hive is to lay eggs and pass genes on to offspring. But many bee species do just fine without queens or big colonies.
Leap Day is coming. Marvin Samuel Tolentino Pineda/iStock, via Getty images

Why does a leap year have 366 days?

Humans have synced their calendars to the sun and moon for centuries, but every so often, these systems need a little correction.

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