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
Drip Drip Drip
Can you imagine not being able to turn on a water tap? Can you imagine not even having a water tap?
Today’s challenge is to notice when you do something that we all take for granted – turning that tap and letting the water flow.
Washing your hands, cleaning your teeth, taking a shower. You are thirsty, so take a big gulp of water straight from that tap after playing outside in the sun.
Every time you turn on a tap of water, think about how easy it was and what you would do without running water.
You Can Be Wonder Woman! Written by You
Helen is 14 years old and lives in Greece. She has written for us about being a wonder woman.
Prehistoric Art
