---- Closest To The Sun

This essay ---- Closest To The Sun has a total of 1049 words and 7 pages.

---- Closest to the sun
---- Smallest of the inner planets
---- Temperatures reach up to 1,380 F
---- Has low gravity, therefore there is no atmosphere
---- Orbits the sun once every 88 days
---- Surface is devoid of basalt - a hard, dense type of
volcanic rock that has a glassy appearance
---- High density which implies that there is a large
iron or nickel-ore core
---- Fun/Interesting Fact* Mercury's perihelion (the time
at which the planet is the closest distance from the sun) advances 43 seconds of arc per century.

---- Second planet that is closest to the sun
---- Earth's twin--has the same density, mass, diameter
and rock composition
---- High surface temperatures reaching near 900 F
---- Surface features: low-lying plains, mountain ranges,
volcanoes, and rift systems.
---- Largest highland region is about the size of Africa
---- Rotates on its axis in a retrograde "backwards" direction
---- Completes one trip around the sun in 224.7 Earth- days
---- 98% of the atmosphere is made up of carbon dioxide
---- Fun/Interesting Fact* Venus has hot spots, formed from deep in the planet's interior, that are similar to the ones that made the Hawaiian Islands

---- Third planet from the sun
---- Distance from the sun 92,956,000 miles
---- Has only one orbiting companion-the Moon
---- Largest of the inner planets
---- Appears as a blue sphere from outer space, due
to the water
---- Only place, that we know of, that has life on it
---- Made up of:
Mantle: Composed of compounds of iron,
magnesium, silicon, and oxygen
Outer Core: sodium, potassium, oxygen, silicon
and aluminum
----Fun/Interesting Fact* Earth's crust has a isostasy, (a
condition of balance that exists between different
portions of Earth's crust), which means the lighter
rocks of the crust float on the heavier, plastic rocks of the mantle and either rise higher or sink lower, depending on the density and volume of the crust

---- Fourth planet from the sun
---- 15 times as far from the Sun as the Earth
---- Orbits somewhat elliptical
---- Distance varies from 128.4 million mi. To 154 million mi.
---- It takes 687 Earth days to revolve around the Sun
---- Rotates at 15 mi/sec.
---- A day is 24hr. 37min. 23sec. long
---- Has two small moons: Phobos (fear) & Deimos (terror)
---- Martian atmosphere contains carbon dioxide, nitrogen, and argon. Minor amounts of oxygen, carbon monoxide, water vapor, and small traces of other elements.
---- Mars has a similar global at

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