Popular, Science, Nature and Tech

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

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.

Science, Nature and Tech

How to Be an Inventor

Have you ever thought ‘There MUST be an easier way to do this’? If you have, you are not alone. People around the world invent and re-invent products all the time. Some of them are professional, and inventing is part of their job. Others are just normal people who had a bright idea.

There are many clubs and societies which you can join and learn to invent or develop your curiosity and talent for science and invention. All inventors start somewhere, and most of them start when they are very young. Young people have the best imaginations so if there is something you think is a good idea and you want to try and create, why not join up with other young creative people and work together.

Sports

Stories from the Stables Part 2 – Topper. Ouch!

Our Stories from the Stables series from Carolyn Ward continues with a flea-bitten grey with a shocking attitude.

Topper. I swear that pony could scowl.

It was my week to ride him, and I had just hauled him all the way down to the outdoor school and stood him in the middle to check his girth and stirrups. As I reached under to tighten up the girth he turned his head toward me and eyeballed me, then stepped over with his nearside foreleg; and stamped on my left foot.

I hissed a very rude word and frantically pushed him to move him off. My foot sunk into the woodchip surface with his heavy weight crushing it down. By now he was still looking directly at me, so I started punching his shoulder to try and get him to step off. Today’s teacher was a crosspatch I have no fond memories of; if she had found out about it I’d have been bawled out for having my foot in the wrong place or something.

Home, Health & Style

How to Negotiate a Later Bedtime

Communication and negotiation are two ways of helping you get what you want, without fighting or arguing with your parents, family or friends or even at school with your teacher. If you communicate and negotiate well, you and the person you are negotiating with can come to a agreement without either of you feeling like you “gave in” or lost the argument.

Science, Nature and Tech

Is The Great Wall of China Visible from Space?

The idea that the Great Wall of China can be seen from space has been around since at least 1938 and is still popular today. It certainly seems plausible that such a large, linear structure would stand out from the surrounding landscape, but it’s actually not true.

Alan Bean, the fourth man to walk on the moon, said in 1969

“The only thing you can see from the moon is a beautiful sphere, mostly white, some blue and patches of yellow, and every once in a while some green vegetation. No man-made object is visible at this scale.”

But if you can’t see the Wall from the moon, how about somewhere closer to Earth? The International Space Station (ISS) maintains a low earth orbit of between 330-435 km above our planet’s surface.