The Interesting Fact About Earth
1). 1.3 million Earths could fit inside the sun, an average-sized star.
2). Earth is almost five billion years old, although life (resembling life as we know it) has only existed on the planet for the last 150 million to 200 million years. This means that life has only been present on Earth for only 5%-10% of its lifetime
3). Earth has a powerful magnetic field:
This phenomenon is caused by the nickel-iron core of the planet, coupled with its rapid rotation. This field protects the Earth from the effects of solar wind.
4). There is only one natural satellite of the planet Earth:
As a percentage of the size of the body it orbits, the Moon is the largest satellite of any planet in our solar system. In real terms, however, it is only the fifth largest natural satellite.
5). If you drilled a tunnel straight through the Earth and jumped in, it would take you about 42 minutes to get to the other side.
6). The length of time it takes for Earth to orbit the Sun is 365 and a quarter days. To make up this extra quarter which isn’t counted at the end of a year, we have an extra day every four years on 29th February. The next Leap Year will be in 2012
7). Earth is the most dense planet in the solar system.The density of Earth differs in each part of the planet – the core, for example, is denser than the Earth’s crust – but the average density of the planet is around 5.52 grams per cubic centimetre.
8). Of all the planets in our solar system, the Earth has the greatest density:
This varies according to the part of the planet; for example, the metallic core is denser than the crust. The average density of the Earth is approximately 5.52 grams per cubic centimetre.
9). The Queen of the UK is the legal owner of one-sixth of the Earth’s land surface.
10). The centre of the Earth, its core, is molten. This means that it is liquid rock which sometimes erupts onto the surface through volcanic eruptions. This core is 7,500°c, hotter than the surface of the Sun!
11). It takes 8 minutes and 20 seconds forlight to travel from the sun to the earth.
12). The rotation of the Earth is gradually slowing down.The deceleration of the Earth’s rotation is very slow, approximately 17 milliseconds per hundred years. Eventually this will lengthen our days but it will take around 140 million years before our day will have increased from 24 to 25 hours.