The sun

ImageThe Sun or Sol, is the star at the centre of our solar system and is responsible for the Earth’s climate and weather. The Sun is an almost perfect sphere with a difference of just 10km in diameter between the poles and the equator. The average radius of the Sun is 695,508 km of which 20–25% is the core.

Star Profile

Age: 4.6 Billion Years
Type: Yellow Dwarf (G2V)
Diameter: 1,392,684 km
Circumference at Equator: 4,370,005.6 km
Mass: 1,989,100,000,000,000,000,000 billion kg (333,060 x Earth)
Surface Temperature: 5500 °C

 

Facts About The Sun

One million Earths could fit 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 Suns surface area is 11,990 times that of the Earth’s.

Eventually, the Sun will consume the Earth:
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. At this stage it will have become a red giant

The Sun will one day be about the size of Earth:
After its red giant phase, the Sun will collapse, retaining its enormous mass, but containing the approximate volume of our planet. When this happens, it will be called a white dwarf.

The Sun contains 99.86% of the mass in the Solar System:
The mass of the Sun is approximately 330,000 times greater than that of Earth. It is almost three quarters Hydrogen, whilst most of the remaining mass is Helium.

Mercury

Mercury

Mercury is 57,000,000 kilometers away from the sun.

To orbit the Sun, Mercury takes 87.969 days

For a full rotation it takes 58.6461 days.

Mercury is named after the Roman messengers of god.

There has only been one space craft that has ever been to Mercury.

The surface of Mercury is very similar to our moon. It has a very barren, rocky surface covered with many craters.

Mercury is the fastest moving planet in the solar system.

Mercury has no known moons.

Mercury has no atmosphere so there is no wind and no weather.

English: plane of the ecliptic of the Earth's ...

Persuasive Writing

Dear Mr. Barratt,

We should have 2 day weekends so we wont miss out on future learning.

We should have 2 day weekends because missing out on future learning can cause damage to your education. If you don’t learn and stay on the right track then that might make you unlucky in terms of jobs.The learning you do in primary is what you use all the way to university so being focused in primary and further on is very important because you might need to catch-up on work you have been missing.