THE PLANET MURCURY

For science I am learning about the planet Mercury. Just to give you a comparison, Venus orbits the Sun at an average distance of 108.2 million km. And Earth orbits the Sun at an average distance of 149.6 million km. So you can see that Mercury is much closer, taking only 88 days to complete an orbit around the Sun. So, Mercury is the closest planet to the Sun.

Mercury does not have any moon rings, it is also known as the smallest planet in the Galaxy. Mercury is the closest planet to the sun which it only takes 88 days to complete an orbit around the sun. Your weight on Mercury would be 38% of your weight in Earth. A day on the surface of Mercury  lasts 176 Earth day. Also a year on Mercury takes 88 Earth days.

Every 7 years Mercury can be seen from Earth passing the face of the Sun. This is because Mercury's orbit is turning by 7 degrees to the planet of Earths orbit and its known as a movement. The next movement of Mercury was on May 9, 2016 and was be visible from Europe after noon. 

70% of Mercury's core is made of iron. Mercury's core is about the size of earths moon. Mercury has the most iron in its core out of all the planets. There is also a rocky shell that's on the outside of the core which is about 320 miles thick. 

A mile and a kilometer are both units of length or distance. Kilometers are used in the metric system and each one is about 6/10 of a mile, which is used in the US standard system of measurement. A mile is longer than a kilometer. One mile is equal to 1.609 kilometers.