Analysis and Comment

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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.
Yes, I am a bit chilly, why? tim elliott/Shutterstock.com

Is winter miserable for wildlife?

When you're warm and cozy inside, it can be natural to wonder if the animals you see outside your window this winter are doing OK. Don't worry – they're doing better out there than you would.

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