[DOC] [TLE] Planet Earth: Facts About Its Orbit, Atmosphere & Size - Space.com [PAR] Dec 11, 2014 ... Earth, our home, is the third planet from the sun. It is the only planet known to 
have an atmosphere containing free oxygen, oceans of ... Earth is the fifth largest 
of the planets in the solar system  smaller than the four gas ... Roughly 71 
percent of Earth's surface is covered by water, most of it in the oceans. [DOC] [TLE] Why is Earth the only planet that can have ... | Khan Academy [PAR] While Earth is the only planet KNOWN to have life, NASA is searching for life on 
mars (if ... It's just close enough to the sun to allow liquid water and just far away 
.... Other planets could be habitable, just not necessarily in our solar system, ...... 
is that from the corona of the sun to the atmosphere of earth, from the surface of... [DOC] [TLE] Earth Facts - Interesting Facts about Planet Earth - Space Facts [PAR] The Earth is the only planet in our solar system not to be named after a Greek or 
Roman deity. ... as 140 million years before the length of a day will have 
increased to 25 hours. ... This phenomenon is caused by the nickel-iron core of 
the planet, coupled with its rapid rotation. ... -70% of the Earth's surface is 
covered in water [DOC] [TLE] Planets of our Solar System :: The Planets Today [PAR] A description of each of the solar system planets and the history of our 
knowledge of them. ... It has a highly cratered rocky surface and is known to have 
an iron core. ... has been mapped using radar and it is known that is is covered 
by large flat .... However its mass is only a tenth of Earth's with gravity on the 
surface being... [DOC] [TLE] The Inner Planets of Our Solar System - Universe Today [PAR] Jun 25, 2016 ... Between its eight planets, 176 moons, 5 dwarf planets (possibly hundreds more), 
... The terrestrial planets of our Solar System at approximately relative sizes. ... 
Three of the four inner planets (Venus, Earth and Mars) have ... even has many 
deep craters and is covered by a thin layer of tiny particle silicates. [DOC] [TLE] What is the Average Surface Temperature of the Planets in our Solar ... [PAR] It's is no secret that Earth is the only inhabited planet in our Solar System. ... 
exactly are the surface temperatures on these rocky worlds and gas giants that 
make... [DOC] [TLE] Earth Facts - Planet Earth - Earth For Kids - Planets For Kids [PAR] The Earth is unlike every other planet in the Solar System in a number of different 
ways. It is the ... It is the only planet that has liquid water on its surface. Starts. [DOC] [TLE] Earth | The Blue Planet | Science | Solar System | Moon | Earth Facts ... [PAR] Even though 70 percent of our planet is covered in water, we can only use one 
percent of it. ... Earth is the only planet we know of in our solar system that 
humans can live on. ... Because we have so much water, Earth is called the Blue 
Planet. ... Earth is the only planet where water can exist in liquid form on the 
surface. [DOC] [TLE] Earth Facts: Interesting Facts about Planet Earth  The Planets [PAR] Earth is the only planet in the solar system not named after a mythological being. 
... This effect on the Moon means it is tidally locked to Earth  its rotation period is 
the ... Eventually this will lengthen our days but it will take around 140 million 
years ... 70% of the Earth's surface is covered by water  the remainder consists 
of... [DOC] [TLE] Comparing the 9 Planets of Our Solar System [PAR] Comparing the planets of our Solar System. ... There is more to learn about the 
planets than just their position and name. ... Because Mercury is so close to the 
Sun, the side of its surface that faces the Sun is very hot, ~800oK. The surface of 
Mercury ... Venus, the

Question: The Earth is the only planet in our solar system to have 2/3 of its surface covered by this
Answer: Water