Science, Nature and Tech Archives — Page 6 of 18

Science, Nature and Tech

Get Cracking With Computer Coding for Kids

Kids computing – there’s a lot of talk going on about it right now. What do you learn about computing in your school? Are they teaching you how to make cool video games? How to come up with a story that makes sense, how to make sure that it’s engaging, that there are challenges at each level, and that there’s a reward at the end? How to build that?

How to make the bird you toss flop realistically into a pile of whatever you choose – making sure that gravity works the way you would expect it to (or not). How to craft the graphics you need to tell your story? How to publish that to your own smartphone and to share it (or sell it!) to friends and strangers?

Hmmm, I didn’t think so. “ I’d rather just do some Power Point and Word exercises, “ said no kid, ever.

Science, Nature and Tech

Winter Wonderings – Can It Really Be Too Cold for Snow?

Have you ever heard someone say that it is ‘too cold for snow?’, and wondered if this was true. Our Science Correspondent Samantha looks at the science behind this claim.

Science, Nature and Tech

Winter Wonderings – Why Does Frost Make Patterns?

The third #winterwonderings post from our Science Correspondent, Samantha, we take a look at why frost makes patterns. Many countries have a mythical figure like Jack Frost, who draws in the ice and frost in winter, but what really causes these gorgeous natural designs.

Science, Nature and Tech

Winter Wonderings – Are Snowflakes Really All Different?

It’s a common belief that no two snowflakes are the same, and in a way this is true. No snowflake can ever be completely identical to another, because when you get down to the molecular level they will have slightly different kinds of water molecules, different electrons and different traces of other materials such as specks of dust.

However, if we’re talking only about the appearance and shape of a snowflake, then yes it is possible that some will have duplicates. Snow crystals can vary from fairly simple, hexagonal structures to the more complex and delicate shapes that we commonly think of as snowflakes.

The simple flakes have far fewer molecules than their larger cousins and so it’s entirely possible that you could find two that appeared identical when viewed through a microscope. The more complex structures, however, can have more than a hundred different features and each feature can form in a number of different ways. This makes it highly unlikely that you would ever find two large snowflakes that looked the same – but you could have fun trying!

For a more detailed explanation of the science behind the forming of snowflakes, check out this video

Science, Nature and Tech

Winter Wonderings – Why Can You See Your Breath When it is Cold?

This is the first in a series of posts by Sam Gouldson called Winter Wonderings. Sam will take a closer look at some of the amazing things that winter brings, such as snowflakes, ice and snow and explain the science behind the season!

You may have noticed that you can see your breath when the weather is cold, especially if you exhale really hard. But what causes this and why doesn’t it happen when it’s warm?