Articles on Curious Kids

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Nina Maile Gordon/The Conversation

Curious Kids: why are there waves?

Waves occur in all sorts of places, and it's possible that waves you might see breaking at the beach are at the end of a very long journey.
Earth is really ancient, and humans have only been around for a tiny part of that time. NASA

Curious Kids: how was the Earth made?

All the buildings and the cars and the restaurants, and the phones and even everything that's inside of you... it all started with an exploding star, billions of years ago.
The world’s current tallest skyscraper is the Burj Khalifa in Dubai. It’s 828 metres tall. But we could go taller. Flickr/Cristian Viarisio

Curious Kids: what’s the tallest skyscraper it’s possible to build?

It would be difficult, but we could probably build a tower over 2,000 metres tall, which would be like ten normal skyscrapers on top of each other! This is probably not a very good idea though.
The more fuel there is for the fire to burn, the bigger the fire. Leaves, trees and grass fuel the fire. Flickr/bertknot

Curious Kids: how do bushfires start?

Bushfires require three key ingredients to ignite: heat, fuel and oxygen.
Scientists built a small database showing which animals do and don’t fart. Not every animal in the world is on there, but it does have moon snails listed as a no. Flickr/Florida Fish and Wildlife

Curious Kids: can snails fart?

One thing I can tell you is that a snail's bottom is right over its head.
The short answer is that leaves fall off trees when they aren’t doing their job any more. Emily Nunell/The Conversation CC-NY-BD

Curious Kids: why do leaves fall off trees?

Leaves fall off trees when they aren’t doing their job any more. If there isn’t enough water, the leaf can be damaged and stop working.
It’s true they do have an amazing ability to be able to sleep standing up. But they do also sleep lying down. If you’re a horse, you need to be able to do both. Flickr/Loco Steve

Curious Kids: why don’t horses sit or lie down even while sleeping?

Horses can stand on three legs and rest the other leg. They can change the leg they rest so that all of their legs get a chance to have a break.
A brain freeze is an intense ‘squeezing’ sensation on your head. Nina Maile Gordon/The Conversation

Curious Kids: what is brain freeze?

There are several different science ideas around why, but the answer may have something to do with what happens when we cool down the roof of our mouth.
The experience that babies get from eavesdropping on their mother’s conversations in utero helps their brain tune into the language that they will learn to speak once they are born. Emily Nunnell/The Conversation CC-BY-ND

Curious Kids: how do babies learn to talk?

Using a sing song voice helps babies tell the difference between words like 'mummy' or 'daddy'.
Here’s a close-up picture of a head louse. The eggs of the female head louse are what we call ‘nits’.

Curious Kids: what’s the point of nits?!

We like to think that all creatures play a role in the local ecosystem. We're especially interested in insects that provide a benefit for people too. But that's not always how it is.

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