Articles on Curious Kids

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The warming of the outside of the ice cube happens faster than the warming of the inside, causing it to crack. Mai Lam/The Conversation NY-BD-CC

Curious Kids: Why does ice make a cracking sound when water is poured on it?

Water is one of very few chemicals that is found as a liquid, solid and gas at any time on Earth. These three states of water help explain why ice makes a cracking sound when water is poured over it.
Different kinds of plants make different kinds of seeds. Some seeds grow into trees and other seeds grow into other kinds of plants. www.shutterstock.com

Curious Kids: Where did trees come from?

Trees evolved many times around the world.
Mai Lam/The Conversation NY-BD-CC

Curious Kids: Why do sea otters clap?

Sea otters can break the shell on a shellfish by hitting it against a stone resting on their belly. This can look like clapping. Some even have a favourite stone they carry around in their armpits.
While some things glow all the time, glow-in-the-dark paint must be ‘told to glow’ - just like a phone needs to be charged or it won’t work. Mai Lam/The Conversation NY-BD-CC

Curious Kids: How does glow in the dark paint work?

You can see glow-in-the dark paint, but if you touch it, it is just as cold as the bedroom wall. So the glowing of the paint is different to the glowing of a light bulb.
Dogs don’t follow the rules on larger animals living longer. Cindy Zhi/The Conversation NY-BD-CC

Curious Kids: Why don’t dogs live as long as humans?

Dogs don't follow the rules on larger animals living longer. A 70kg Great Dane is lucky to reach seven years, but a 4kg Chihuahua can live for 10 years or more.
Knismesis occurs from a light touch, like a feather touching you and can happen on the skin anywhere on the body. www.shutterstock.com

Curious Kids: Why are we ticklish?

People have wondered for years and scientists still don't know for sure.
Some people thought Charles Darwin was suggesting that, over a very long period of time, apes turned into people. He was not. Flickr/Ronald Woan

Curious Kids: Can chimpanzees turn into people?

The short answer is no. An individual of one species cannot, during its lifetime, turn into another species. But your question helps us think about life, evolution and what it means to be human.
When we get hot, sensors in the body tell the brain. The brain then tells the sweat glands to work, and we sweat. Marcella Cheng/NY-CC-BD

Curious Kids: What happens in the body when we sweat?

Sweat comes from special parts in our skin called glands. You might be able to see them if you have a very strong magnifying glass.
The air doesn’t like to be under pressure just like us. The wind is the result of the air trying to escape from high pressure. Mami Kempe / The Conversation

Curious Kids: What causes windy weather?

Wind is just air moving from one place where there is high pressure to another place where there is low pressure.
Flies will often sleep on the underside of leaves, to escape from heat and predators. Mai Lam/The Conversation NY-BD-CC

Curious Kids: Where do flies sleep?

Flies need good grip because they often sleep upside down.

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