When crustaceans are cooked, some chemicals in their shells react with heat and change colour.
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Out there in space there is no air. If you took your helmet off, all the air you need to breathe would whoosh out.
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.
Trees evolved many times around the world.
The most interesting part of our body that changes during sleep is our brain.
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.
Those “itchy bites” are actually reactions to mozzie spit.
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.
Imagine This, a new podcast by ABC KIDS listen based on The Conversation’s Curious Kids articles, brings science to life for little ones, with brilliant sound effects and wonderful storytelling.
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.
Instead of pulling us to the top or bottom, the force of gravity pulls us to the middle of the Earth.
People have wondered for years and scientists still don’t know for sure.
The seahorse dads carry the babies in a pouch.
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.
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.
Wind is just air moving from one place where there is high pressure to another place where there is low pressure.
To stay up, the bird must overcome gravity with a force called ‘lift’.
Flies need good grip because they often sleep upside down.
Some spiders produce silk than can actually be stronger than steel and 50 times as light.
Hiccups serve no clear purpose. Tadpoles have a hiccup reflex which helps keep their lungs safe while they transition. So our hiccup reflex might be from our amphibian ancestors.
Kontributor teratas
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Reader in Astrophysics, Keele University
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Associate Professor of Science & Medicine, Bond University
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PhD Candidate, University of Southern Queensland
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Professor (Astrophysics), University of Southern Queensland
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Associate Professor, Philosophy of Science, The University of Melbourne
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Lecturer, Centre for Astrophysics and Supercomputing, Swinburne University of Technology
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Researcher, 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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Associate Professor, School of Animal and Veterinary Science, University of Adelaide
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Lecturer, University of Southern Queensland
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Senior Lecturer in Physics, University of New England
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Associate professor, Astronomy, University of Regina
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PhD Candidate, The University of Queensland
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Honorary Associate Professor, UNSW Sydney
