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We all know that earth is pretty big. It would take you 16 days, 16 hours and 45 minutes
to drive around earth in a car going 100 kilometres per hour constantly. It would take you about
350 days, or just under a year to walk right around earth, assuming you never took a break
and could walk in a straight line around earth.
When you think about it, we're tiny on earth. If you were to stand next to earth on a flat
surface, earth would be over 7 million times taller than you, which is an extraordinary
size.
But what if earth was the size of a football, or soccer ball as some people call it. How
tall would the average human be?
You would be microscopic. On this football sized earth, you would be about 0.0000097cm
tall and be made up of around a couple thousand atoms. That's a lot more than the 7 octillion
atoms, or seven thousand quadrillion atoms you have in your body right now.
It really shows how big earth is, but how small we are. Earth is made out of 1x10^50
atoms. That's a very long number. Just trying to visualise that many atoms would be mind
blowing.
So I'm going to leave you with a question. Every time we build a new building on earth
or welcome a new child to the world, is earth getting heavier? Tell us what you think in
the comments below and we'll answer the question in a few days' time.
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