Articles on Curious Kids

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Do you think you could make an echo at Echo Point in Katoomba? Flickr/Amanda Slater

Curious Kids: what makes an echo?

When a sound is made, it spreads. And when it hits a hard surface that is far away, it bounces back and comes back to where the sound was made. That's what we call an echo.
A headache is not from your brain itself hurting, but it might mean some of the muscles, membranes and tissues surrounding the brain or its blood supply system could be hurting. Shutterstock

Curious Kids: what is a headache? Is it our brain hurting?

The brain itself can’t actually feel pain. It can't sense damage to itself the way your finger can. We know this because people can have brain surgery while they are totally awake.
These strawberries are almost ripe! fs999/flickr

Curious Kids: what happens when fruit gets ripe?

Fruit ripening is all about plants getting animals to eat the seeds that are inside their fruits. This helps the plants get their seeds to somewhere new where they can grow into a new plant.
Your brain is about 70% water. Shutterstock

Curious Kids: how much does a brain weigh?

An adult brain weighs about 1.5kg. It's mostly water with some fat, protein, sugar and a dash of salt. Sounds like pancakes, I know, but I once tried chicken brains and, well, pancakes are tastier.
A few days after baby molluscs come out from tiny eggs, they start building their shell layer after layer. Emily Nunnell/The Conversation NY-BD-CC

Curious Kids: how do shells get made?

Molluscs that have shells - like pipis, clams and oysters - have to build their own shell from scratch. And they keep building it their whole life, using chemicals from the sea and their own bodies.
Your tummy is a juicy rollercoaster ride for food! Flickr/Stuart Richards

Curious Kids: how does my tummy turn food into poo?

Your stomach works very hard with some other body parts to break down food into small pieces. Your body takes in what it needs and the rest is turned into poo.
The heat makes the drought even worse, because it makes the plants more thirsty so they have to drink more. Tim J Keegan/flickr

Curious Kids: why do we have a drought?

We can't make it rain. But you are already helping if you don't use more water than you need. And you can talk to your parents about the planet getting warmer, because the heat makes drought worse.
Excuse me! Photo by Natasha Kasim on Unsplash

Curious Kids: why are burps so loud?

As gas from your stomach comes up your food pipe, it makes the surface of the upper part of your oesophagus rattle and vibrate. It is a bit like windows that rattle during a windy storm.
It’s a good idea to wash your hands after you go to the toilet, after you blow your nose, before you help prepare food and before you eat. Photo by Kelly Sikkema on Unsplash

Curious Kids: why do we need soap?

While we move soap around, it lifts up invisible oil that holds germs onto your hand.

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