Sometimes you should explore your own home. Learn what you didn't know you didn't know. Even though you live on Earth, there are some things you don't know about the heavenly body your feet are planted on. Earth is the fifth largest planet in the solar system. It is the largest of the four inner terrestrial planets, which are Mercury, Venus, Earth, and Mars. Earth is 149,503,000 kilometers from the Sun.

Before Christopher Columbus, people thought the world was flat as the paper maps they made. Until recently, when satellites served us as means for calculations, we thought Earth was a beautiful round sphere. Instead it has a shape of a robed man with a big head, or as many like to say, "it's pear-shaped". Earth has a big top, where the North Pole distends 21 kilometers. The equator bulges out 10 kilometers, and the South Pole goes in 31 meters. Earth has a diameter of 7,926 miles. It orbits for 365.24 days. Most people think that a day on earth is 24 hours, because that's how the weird humans measure time. In actuality, the Earth takes only 23 hours and 56 minutes to rotate. At nights, there is a moon in the sky. It's full of craters. The moon has a diameter of 2,160 miles, which is larger than Pluto. It has a rotating time and an orbit of 27.3 days. This equivalence is very unusual, but special.

Earth is a five layered pie with life for its filling. When traveling to our destination, the first layer we must past though is the atmosphere. This is the gaseous dress that clothes the solid body of Earth. It extends 1100 kilometers from Earth's surface, but 50% of its mass sinks down to the surface, covering 5.6 kilometers at the bottom.

Earth is known for its abundant life from its water and the Sun's energy, formed around 3,000 million years ago. The second layer of Earth is the hydrosphere, which is the water of earth that comes in all forms, such as: oceans, rivers, lakes, streams, and underground water. The hydrosphere is about 1/4400 of the Earth's total mass. Water covers approximately 70.8% of the Earth's surface. The average ocean depth is 3,794 meters, which is five times greater than average continental heights. The moon's gravitational pull affects the high and the low tides on beaches where all the funny looking Homo sapiens love to swim. Humans are funny creatures. Even though they cannot breathe in H2O, they insist on dipping their entire body in water.

The remaining three layers are formed as the Lithosphere. It consists of a crust, asthenosphere, and inner core. The crust has an upper and lower section. The upper crust is called sialic. These igneous and sedimentary rocks form our continents. The simatic is the lower crust. This is the ground of the floors. It is formed by gabbro and basalt, which creates a darker and heavier crust. In between the crusts, and the upper and lower mantles, which are called the asthenosphere, is the "moho" or seismic discontinuity. The mantles consist of rocks with the density of 3.3. It is 100 kilometers thick, which enables the oceans to open and clothes. The athenosphere surrounds the innermost core. Under all of this magma resides and explodes on our surface, in the form of lava. Lava has shaped some islands, such as the tourist-trapped Hawaii.

So let's go lava rock collecting in Hawaii. If that's not your cup of tea, then grab your swimsuits for hang time in the hydrosphere.