Science, Nature and Tech

Why do we get Hiccups?

Everybody gets hiccups (also sometimes spelt ‘hiccoughs’). Even when babies are still in the womb they hiccup, which can feel very odd to their mother! But why do we get them and how can you stop them?

What are Hiccups?

Hiccups are caused by the diaphragm (pronounced DYE-uh-fram). This is a large, dome-shaped muscle that sits at the bottom of your chest cavity, below your lungs. When we breathe in the diaphragm tightens, helping to pull air into the lungs, and when it relaxes it forces the air back out again. Sometimes the diaphragm becomes irritated and instead of tightening smoothly it does it in a jerky way, which makes air suddenly rush into your throat. This air is stopped when it hits the voice box and makes the opening between the vocal cords close very suddenly. This is what produces the sound of the hiccup.

Science, Nature and Tech

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

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.

Science, Nature and Tech

How to Clean Water

With poor living conditions and water shortages increasing every year across the world, the question of how to clean water efficiently is becoming ever more important.

Does Everyone Have Clean Water?

When you have clean, safe water available at the turn of a tap it’s very easy to take it for granted. But almost 750 million people don’t have access to clean water; that’s one person from every ten in the world’s population. There are many reasons for this, from poverty to poor management by governments.

But almost 750 million people don’t have access to clean water; that’s one person from every ten in the world’s population. There are many reasons for this, from poverty to poor management by governments.

There are many reasons for this, from poverty to poor management by governments.

Home, Health & Style, Popular

12 Steps to Becoming a Self-Confident Kid

Do you ever wish you were more confident? Do you watch other kids standing in front of the class, and presenting their work, and wish you be that self-confident kid?

We often talk about self-confidence and self-esteem in tweens. These two are linked, but slightly different. Self-esteem is about how you feel about yourself, how you value your abilities and yourself. Self-confidence is about how you feel about your abilities, about trusting yourself to do something.

You could have a high self-esteem generally, but have low self-confidence in a particular area, e.g. doing maths, or standing in front of the classroom and presenting a book report.

We often split people into ‘confident’ and ‘not confident’, but we can all learn to be more confident. It just takes a bit of practice. Here are our top tips for increasing self-confidence and self-esteem!

Science, Nature and Tech

Science News – Solar Storms Due to Hit Earth

This weekend the Earth is due to be hit by a pair of solar storms that might affect radio and satellite communication. But how and why does this happen?

What Does Solar Mean?

Image by Nasa

Anything that is related to a sun is commonly described as being solar. Our sun is a typical medium-sized yellow star which is about 5 billion years old. Its surface temperature is about 5,500°C, but even that isn’t as hot as its superheated centre. Some parts of the sun’s surface are cooler, with a temperature of between 2,700–4,200°C, and these appear darker when viewed through specialised telescopes. These cooler patches are caused by fluctuations in the sun’s magnetism and are called sun spots.