Menu Close

Articles on Curious Kids

Displaying 41 - 60 of 680 articles

Two crystalline materials together: kyanite (blue) embedded in quartz (white). Photo 12/Universal Images Group via Getty Images

How do crystals form?

There are a lot of myths about crystals − for example, that they are magical rocks with healing powers. An earth scientist explains some of their amazing true science.
Astronomers can estimate ages for stars outside the Solar System, but not planets. Corbis Historical via Getty Images

How do astronomers know the age of the planets and stars?

Measuring the ages of planets and stars is tricky. An observational astrophysicist describes the subtle clues that provide good estimates for how old different space objects are.
Your bladder can signal the brain when it’s full, even while you’re asleep. Happyphoton/iStock via Getty Images

What happens if you need to pee while you’re asleep?

A pediatric urologist explains how the bladder and the brain communicate to wake you up when you need to ‘go’ – and how that communication might break down.
Some animals, including goats, regularly give birth to two babies at once. Image Source via Getty Images

Can animals give birth to twins?

Animals often give birth to litters of more than one offspring at a time. But are those babies twins?
Tears prevent your eyes from drying out and protect them from irritation and infection. Vizerskaya/E+ via Getty Images

Can you cry underwater?

An ophthalmologist explains how important tears are to keeping your eyes feeling good and working well – whether you’re on dry land or swimming in a body of water.

Top contributors

More