1. Earth and Golden Core.

Everyone knows about the upper surface of the earth, with many living creatures and non-living things. But there is a magical world under the Earth surface. That is earth core with various layers like Inner core, Outer core, Mantle, Upper mantle and crust. Our Earth contains two poles, North Pole [on the upper side] and South Pole[on the lower side]. The Earth core has a very high temperature around, 6000^oC, which is almost equal to the temperature of the sun. Another interesting fact is that, The earth core contains so many tons of gold in it. According to the Australian geologists, there is around 1.6 ton gold inside our earth's crust.

2. Best planet in our solar system.

Earth is the unique plant in our whole solar system, because all the required resources for our basic needs are available on our earth, and also it supports many living organisms. The major source, Water, is available easily only on one plant Earth. Water can exist in all solid, liquid and vapor or gaseous form only on Earth. Also, solar eclipse is completely visible from Earth. This is why it is the best planet among all planets in solar system.

3. 24 hour Myth.

Everyone knows that a day on earth contains 24hrs. But according to the theoretical analysis, a day contains 23hrs 56 min and 4 seconds. This is the time of earth revolving around itself. We differentiate the day and night based on the location of sun because the time rotates according to the movement of sun. So here, the earth revolves around the sun as well as it revolves around itself. But here the interesting fact is the Earth rotates in our solar system in eclipse shape. So everyday Earth rotates 1^o more than 360^o. This is why it takes 24hrs to complete a day.

4. Speed of the Earth.

The surface below our feet is stationary, it does not move. But if we consider the earth as a spaceship, then all the living organisms on the Earth's surface are the passengers. If we see in this way, Earth moves with an approximate speed of 1,07,182 kmph, This means earths travels half km for every one second. Due to this speed,  gravitational force is experienced, and the objects are to be stationary on the earth without moving.

5. Fluctuation in Gravity.

If we recall our 10th class physics, we know that the value of gravitational force(g) is 9.8 m. But gravity on our  earth various at certain places like the place Hudson Bay in Canada have less value for gravity. Like if a person is 200 Kilo pounds weight in every place but in this Hudson Bay his weight will be around 198 Kilo pounds. The difference of the theoretical value is less but, when we experience it, we may see the change to less weight. Also in India a road has less gravity than the original gravity. If we leave a car on a black road, the car will slip down easily. So, like this, there are many places on the earth where there are fluctuations in gravity.