Chapter collapsed because of its gravity, it spun

        Chapter Two :

         The Sun

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             By : C. Page, K. Contresas

                     A. Lopez, H Mikel

 

 

 

            Many Scientists think the sun and the
rest of the solar system formed from a giant, rotating cloud of gas and dust
known as the solar nebula and believe the sun to be approximately 4.6 billion
years old. As the solar nebula collapsed because of its gravity, it spun faster
and flattened into a disk like a pancake. Most of the material was pulled
toward the center to form a protostar that would eventually become our sun. The
sun lies at the heart of the solar system, where it is by far the largest
object. It holds 99.8 % of the solar system mass and is roughly 109 times the
diamiter of the earth- about 1 Million Earths could fit in inside the sun. If a
hollow sun was filled up with spherical earths then around 960,000 would fit
inside. On the other hand if these Earths were squished inside with no wasted
space then around 1,300,000 would fit inside . The Sun’s surface area is 11,990
times that of the Earth’s. The visible part of the sun is about 10,000 degrees
fahrenheit ( 5,500 degrees celsius ) while tempetures in the core reach more
than 27 million F ( 15 million C ), driven by nuclear reaction. One would need
to explode 100 billion tons of dynamite every second to match the energy
produced by the sun, according to Nasa.

 

     The Sun is a huge, glowing sphere of hot
gas. Most of this gas is hydrogen ( about 70% ) the helium ( about 28 % ).
Carbon, nitrogen and oxygen make up 1.5 % and the other 0.5 % is made up of
small amounts of many other elements such as a neon, iron, silicon, magnesium
and sulfur. The sun shines because it is turning hydrogen into helium vid the
process of nuclear fusion in its extremely not core. This means that as times
goes on , the sun has less hydrogen and more heluium. The big question is ,will the sun ever burn
out , apparently it will the sun has used 
about  half of its hydrogen fuel
in the last 4.6 billion years since its birth. Its has enough hydrogen to last about
5 billion years.

The sun’s core is a massive volume of
energy that gets released and radiates outward towards the surface of the sun
and into the solar system beyond it.

This means that as
times goes on , the sun has less hydrogen and more heluium. The big question is ,will the sun ever burn
out , apparently it will the sun has used 
about  half of its hydrogen fuel
in the last 4.6 billion years since its birth. Its has enough hydrogen to last
about 5 billion years.

            The amount of radiation given off by
the Sun changes with solar activity like solar flares or Sunspots. Solar
activity is known to vary in cycles, like the 11- yrs sunspot cycle (
and longer cycles). Some scientists have wondered if changes in our weather and
climate might be linked with short or long term solar cycles. Weather is the
current atmosheric conditions, including temperture, rainfall, wind and
humidity for a given area, while climate is the general weather conditions over
a longer amount of time..

The core of the Sun
is the region that extends from the center to about 20-25% of the solar radius.
It is here, where energy is produced by hydrogen atoms (H) being
converted into molecules of helium (HE). The core is the only part of
the Sun that produces an appreciable amount of heat through fusion. The Sun
also produces light by a nuclear reaction called fusion. As atoms of hydrogen
combine to form helium, they produce vast amounts of heat and light. When all
the hydrogen has been burned, the sun will continue for about 130 million more
years, burning helium, during which time it will expand to the point that it
will engulf Mercury and Venus and the Earth.

            The Earth benefits from the Sun because
energy from the sun is very important to to the Earth. The sun warms our
planet, heating the surface, the oceans and the atmosphere. This energy to the
atmoshere is one of the primary drivers to our weather. Our climate is also
strongly affected by the amount of solar radiation received at Earth.  About a third is reflected back into space by clouds and
snow. A little over 40% warms earth. While about 25% is used by the water
cycle. Winds and ocean currents absorbs about 1% while all the plants on earth
use only about 0.023% for photosynthesis!

 

 

 

 

 

      

 

 

 

   

           

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SPACE MATH

 

 

Saturn

 

 

01. Find AU for Saturn =9.6 AU

2.Find out how much 1 AU
carries for miles.= 1AU
carries 93 million
milles

3.Multiply how many AU’s
Saturn has by how many 1AU holds =93x 9.6= 8928

4.Add 6 zeros after the
number: 8928000000

5.Since Saturn’s AU (9.6) has
a decimal more the decimal to the left once. =8928000000

6. Move the decimal until
it’s in between the 8 and 9 = 8.928000000

7. Count how many times you moved
the decimal = 8x

8.Add in scientific notation.
Take the zeros off, but leave the decimal. =8.928.

9. Then add x10 to the number
of counts you from moving the decimal.= 8x   

= 8.928×108 miles

10. You pronounce this like
this= eight point nine hundred twenty eight times ten to the eight power.

 

 

 

 

 

 

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