Articles on Curious Kids

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Applying eye black is an important part of prepping for a game for some players. Maddie Malhotra/Boston Red Sox via Getty Images

Why do baseball players put a black mark under their eyes?

As one piece of more than a century of baseball traditions, eye black is part science experiment, part routine and part uniform.
berni0004/Shutterstock

What came before the Big Bang?

Listen to the The Conversation’s Curious Kids podcast to hear astronomer Michael Lam on what theories scientists have for what came before the Big Bang.
Hatshepsut (c. 1505–1458 B.C.E.) was Egypt’s second female ruler. She often is depicted as a sphinx or wearing a beard, a traditional sign of pharaonic authority. G. Dagli Orti/De Agostini Editorial via Getty Images

Who was the first transgender person?

There is evidence of people who crossed gender boundaries even in ancient civilizations, though the terms naming them have evolved over time.
The fate of a person’s debts after they die depends in part on what they owned. MicroStockHub/iStock via Getty Images Plus

What happens to debt when someone dies?

Whether or not there’s a will, the results are the same.
Watch out! There are high-voltage wires here! Igor Zubkov/iStock via Getty Images Plus

What are those orange balls on some power lines?

Aviation marker balls don’t help with electricity flow or improve the efficiency of the power lines. But they do have a very important job.
Evaporating water is essential to helping your body cool down. Imgorthand/E+ via Getty Images

Why is water wet?

You can feel wet when you can see water and when you can’t see water. You can also feel dry even when there’s a lot of water vapor in the air – like during a fire.
Once plants really got a foothold, they transformed our planet. Albert Fertl/Moment via Getty Images

What was the very first plant in the world?

Plants changed the atmosphere, built soil and created ecosystems that allowed animals like us to thrive. But first they had to make their way from the water to the land.
Wildflowers grow in sight of a snow-covered mountain. AscentXmedia/iStock/Getty Images Plus

Why do mountaintops stay snowy?

The answer has to do with the air we breathe and that bright white snowpack, as an atmospheric scientist in Colorado explains.

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