To answer this question from Fiona, age 6, we need to know some things about clouds and light.
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Articles sur Curious Kids
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Pond snails use things like rocks or the side of their aquarium as their bed, attaching themselves while they sleep. This might not seem very relaxing but their shells do hang away from their body.
When and where you see the Moon in the daytime depends on what phase it is in.
Bones protect our insides, help us to move and even help make our blood.
The world is made of tiny building blocks called ‘elements’. Scientists have worked out how fast some elements change into other elements. That gives us a very big clue about how old the Earth is.
Many people, from children to the elderly, wear glasses. Andy, age 5, wants to know how they work.
You might be trying to catch up on sleep. Sleep scientists say some children need only nine hours of sleep at night, while others need as much as 11 hours. It depends on the person.
This is an article from Curious Kids, a series for children. The Conversation is asking kids to send in questions they’d like an expert to answer. All questions are welcome – serious, weird or wacky! Why…
Have you ever been told not to put metal in the microwave? Edie, age 8, wants to know why.
Scientists say humans are pretty similar to chimpanzees, gorillas and orangutans. So why don’t we have fur like they do?
The students of class 3F at Ferny Grove State School want to know how they get oxygen into the International Space Station.
X-rays are like light rays, but they can pass through more stuff. Some of the x-ray’s energy is blocked by bone, which is why you can see bones so clearly on x-ray scans.
Ferns came along more than 200 million years before the dinosaurs walked the Earth. They were food for plant-eating dinosaurs and they’re really great survivors. Heather, age 8, wants to know more.
Volcanologists study the formation and eruptions of volcanoes - surely one of the most interesting jobs around. However, it can also be very dangerous.
Whether we’re happy or sad, it doesn’t take much to turn on the waterworks. But how and why do humans cry?
The short answer is no. But worms can use different parts of their body to do some of the jobs that our tongues do - like tasting and crushing food.
Maeve, age 8, has a question that has stumped many scientists over the years. And that’s because it’s a surprisingly tricky question to answer. It depends a bit on what you mean by ‘person’.
Animals that evolved in cold parts of the world usually have lighter skin. If a light-skinned animal has blood vessels close to the surface of their ear skin, this will make the ears look pink.
The students of class 3E, Ferny Grove State School, want to know if astronauts get space sick when travelling to the International Space Station.
We’ve all seen videos of satellites being blasted off into space - but once they’re locked in orbit around the earth, how do we bring them back down?
Les contributeurs les plus fréquents
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Reader in Astrophysics, Keele University
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Associate Professor of Science & Medicine, Bond University
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Professor (Astrophysics), University of Southern Queensland
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PhD Candidate, University of Southern Queensland
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Researcher, The University of Melbourne
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Associate Professor, Philosophy of Science, The University of Melbourne
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Professor, Macquarie University
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Senior Teaching Fellow, Medical Program, Bond University
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Lecturer, Centre for Astrophysics and Supercomputing, Swinburne University of Technology
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Lecturer, University of Southern Queensland
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Associate Professor, School of Animal and Veterinary Science, University of Adelaide
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Honorary Associate Professor, UNSW Sydney
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Associate professor, Astronomy, University of Regina
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PhD Candidate, The University of Queensland
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Professor of Astronomy, UMass Lowell
