Popular, Science, Nature and Tech

Have you ever wondered…why leaves change colour in autumn?

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Sam

Sam has worked as a forensic scientist as well as for the British government, and has degrees in both archaeology and osteoarchaeology. She has 2 children, is passionate about science, reading, history and music, and loves dyeing her hair bright colours!

Sam blogs about all kinds of science at www.samanthagouldson.com.
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Autumn is a season of change; the weather gets colder, there’s less daylight and leaves change colour and fall from plants. But why does this happen?

Why Do Plants Have Leaves?

Leaves contain a chemical called chlorophyll (pronounced KLO-ro-fil), which as well as giving them their lovely green colour also helps create food for the plant. The leaves act like tiny solar panels, and use the sun’s energy to convert water (from the ground) and a gas called carbon dioxide (from the air) into sugar and oxygen. This process is called photosynthesis (pronounced foto-SIN-theh-sis), and the sugar is what the plant lives on.

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Popular, Science, Nature and Tech

Can You Catch a Cold from Cold Weather?

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Sam

Sam has worked as a forensic scientist as well as for the British government, and has degrees in both archaeology and osteoarchaeology. She has 2 children, is passionate about science, reading, history and music, and loves dyeing her hair bright colours!

Sam blogs about all kinds of science at www.samanthagouldson.com.
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For years people have told their children to wrap up warm or they will fall ill, but is it really true that you can catch a cold from cold weather? Sam Gouldson’s latest FACT OR FABLE investigation finds out!

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Science, Nature and Tech

Being a Guinea Pig… Twin Research

Tina Price-Johnson

A Paralegal and Litigation Assistant by day, and Freelance Writer/Poet by night and weekend, Tina loves history, social studies and biographies, and enjoys writing about almost anything.She lives in London and travels in the UK and abroad whenever she can, and can usually be found wandering around crumbling ruins.
No, Tina didn’t turn into the cute little furry rodent (although that would be awesome) but became a ‘subject of scientific research’. Find out what that means, and what she had to do!

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Popular, Science, Nature and Tech

Can Too Much Screen Time Damage Your Eyes?

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Sam

Sam has worked as a forensic scientist as well as for the British government, and has degrees in both archaeology and osteoarchaeology. She has 2 children, is passionate about science, reading, history and music, and loves dyeing her hair bright colours!

Sam blogs about all kinds of science at www.samanthagouldson.com.
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I bet you’ve heard some adults warn that too much screen time can damage your eyes. Some even say that sitting too close to a screen can be harmful. This is an idea that’s been around for decades but is there any truth to it?

In the latest of our Fact or Fable series, Sam investigates.

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Science, Nature and Tech

Fact or Fable? Most body heat is lost through the head

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Sam

Sam has worked as a forensic scientist as well as for the British government, and has degrees in both archaeology and osteoarchaeology. She has 2 children, is passionate about science, reading, history and music, and loves dyeing her hair bright colours!

Sam blogs about all kinds of science at www.samanthagouldson.com.
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Many people believe that you should keep your head covered during cold weather, as most body heat is lost through the head. It’s certainly true that any part of your body that’s exposed to cooler air will lose warmth; heat always moves from something warm to something cooler (that’s called the second law of thermodynamics). And our heads and faces are more sensitive to changes in temperature than other parts of the body.

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