Earth and Space
By: Allyson Martiniello
Table of Contents
Chapter 1: The Big Bang Theory
Chapter 2: Types Of Galaxies
Chapter 3: The Solar Systems Size And Distance
Chapter 4: The Structure Of The Earth
Chapter 5: The Blazing Hot Sun
Introduction
Do you want to learn about the amazing Earth and Space? Then your in the right place. In this book you will learn about an explosion that caused the solar system to be made! I hope you like it!
Chapter 1: The Big Bang Theory
Earth is unique because it has a breathable atmosphere so we can breath. It also has plants and life! It is the only planet that has people. The big bang was in an explosion that caused the solar system to be made. Then, it was a huge fireball which exploded in to millions and millions of tiny particles. Next, they expanded over time all through the universe. Later, thick clouds of hydrogen and helium formed and gathered in to dence clumps. So dence light couldn't travel very far so it was very dark! However, a few thousand years later the temperature fell a few thousand degrees. Years later the Milkey way formed. The modern universe has countless stars and planets!
Chapter 2: Typs Of Galaxies
There are four main typs of galaxies. They are spiral, barred spiral, elliptical and irregular. The Milkey way is a spiral galaxy. The Milkey way is cool to look at from the side because it has a huge bulge in the middle. The milkey way is extreamly large compared to a lot of the other galaxies. It is about 100,000 light years across and about 32,000 light years to the middle. Our solar systeam rotates every 225 millon years! It hasn't rotated once sence the dinosaraus were alive!!! The cartwheel galaxy is 150,000 light years across because of its rare shape. It was formed when a smaller galaxey smashed in to it!!!
Chapter 3: The Solar Systems Size And Distance
The univarse is enormous and almost impassable to explor and imagne. The distance across it are colossal and usally measured in light years. One light year is how fast light travels in one year. That's about 9.46 trillon kilometers in a second. The closest star to earth is the sun. It is about 93,205,679 miles away!!!
Chapter 4: The Structrue Of The Earth
There are four layers of the Earth. The crust, mantle, outer core and the inner core. My dad explained "It is similar to a piece of bread",. There are two types of crust oceanic and continental. Continental is up to 43 miles deep. Oceanic is up to 6 miles deep. The mantle is a thin layer of magma called asthenoshere. The mantle and crust together is called lithoshere. Then, inner core is 780 miles deep. It is extremly hot!!! 9,000 fahrenheit. The inner core is the size of the moon!!! The outer is 1,360 miles deep.
Chapter 5: The Blazing Hot Sun
Like the earth the sun has a core. My mom said "It's like the core of in apple",. The core is in the middle just like the the suns core. The suns core is 27 times EARTH!!!!! The sun is 27 millon degrees farinhight. The suns radiative zone surrounds the suns core. Heat produced and the core spreads out through some parts of the suns waves. The suns convective zone carries the suns energy to the surfuse. Photoshere is the suns surfuse made of wind. When particles are trapped in earths poles it creates a light display.
Closing
How was it? Did you learn anything? I know I did! I hope it made you want to learn more! There's still a lot more things to learn. Sientests only know 10% of the things about space. I hope you liked it!