La lecture à portée de main
Vous pourrez modifier la taille du texte de cet ouvrage
Découvre YouScribe en t'inscrivant gratuitement
Je m'inscrisDécouvre YouScribe en t'inscrivant gratuitement
Je m'inscrisVous pourrez modifier la taille du texte de cet ouvrage
Description
Informations
Publié par | Speedy Publishing LLC |
Date de parution | 15 mars 2017 |
Nombre de lectures | 0 |
EAN13 | 9781541918337 |
Langue | English |
Informations légales : prix de location à la page 0,0010€. Cette information est donnée uniquement à titre indicatif conformément à la législation en vigueur.
Extrait
You and I Need
Water
to Survive!
Chemistry Book for Beginners
Children’s Chemistry Books
Speedy Publishing LLC
40 E. Main St. #1156
Newark, DE 19711
www.speedypublishing.com
Copyright © 2017
All Rights reserved. No part of this book may be reproduced or
used in any way or form or by any means whether electronic or
mechanical, this means that you cannot record or photocopy
any material ideas or tips that are provided in this book
I f you’re a bug or a buffalo or a blossoming rose bush, you need water to survive. Without water, life as we know it on Earth would not be possible. Read on and find out more about this wonderful liquid!
Buffalo
Rose
Ladybug
W ater is a combination of two elements, hydrogen and oxygen. Two hydrogen atoms combine with one oxygen atom to make water, and scientists write that as H 2 O.
But where do hydrogen and oxygen come from?
Where does water come from?
water MOLECULE
T he current theory is that the whole universe started from an event scientists call the Big Bang. It was an immense release of power about 13 billion years ago that created the basic ingredients of everything that exists.
The Big Bang
Formation of the universe
Within the first few minutes of the Big Bang, the primal material crashed and smashed together, and created the simplest elements: hydrogen, helium and lithium. So now we have the H 2 part.
In fact, H 2 , hydrogen gas, is the most common molecule in the universe.
S cientists think that millions or billions of years had to pass before oxygen became available. Stars created oxygen, carbon, and the other more complex elements in their incredibly- hot and high-pressure centers. Then when a star dies (explodes as a super-nova) it releases all those elements into the universe. Stars the size of our Sun create the oxygen needed for 100 million Amazon Rivers every second.
Now we have a lot of O floating around.
Making oxygen
oxygen MOLECULE
H ydrogen atoms combined with oxygen atoms in the cooling universe, and adhered to cooling lumps of material. Now we have lots of H 2 O, the second most common molecule in the universe.
Getting water to Earth