Transcript A.JOur Solar Systemx

Our Solar System
By : A.J.
Mercury
Mercury is an inner planet. It is 35.98 million
miles from the sun. It is 801 degrees F, a
diameter of 3,032 miles, a mass of 0.06 of
earths, is a rocky planet, and has no rings or
moons. The composition of mercury’s
atmosphere is small amounts of hydrogen,
helium, oxygen, sodium, potassium, calcium,
and magnesium. Two interesting facts about
mercury are mercury is the smallest planet
and has the most craters than any other
planet in the solar system.
Pluto
Pluto is an outer dwarf planet. Pluto is about
3.67 billion miles from the sun, - 380 degrees
F, 1,485 miles in diameter, less than 0.005
mass of earth, a rocky planet, and 1 moon
with no rings. The composition of Pluto’s
atmosphere is 90% nitrogen and 10% other
molecules. Two interesting facts about Pluto
are Pluto is the second closest dwarf planet
to the sun. Pluto also has been visited by a
spacecraft.
Stars
A Star is a point in the sky that is a large body like
the sun. Stars are classified by their temperature
and the element they absorb.
The Sun
Comets, Meteors,
Meteoroids, and
Meteorites
A comet is a large frozen object of gas and
ice. Meteors are small broken of pieces of a
comet or asteroid in earths atmosphere.
Another name for a meteor is a shooting star.
A meteorite is any part of a meteor that hits
earth. Meteoroids are meteors out of earths
atmosphere.
Gravity
Gravity is the force that attracts a body
towards the center of earth or any other
body having mass. Gravity impacts humans
because without gravity we would fly off
earth into space. On different planets your
weight will be different because of different
amounts of gravity.
GPS Satellites
There are 24 GPS Satellites in space.
The first satellite was launched in
1978, and was originally made for
military applications. In 1994, a
total of 24 GPS satellites were in
space. They help humans by giving
directions to where you want to go
and by Telling you where you are.
GPS stands for Global Positioning
System. GPS satellites are powered
by solar power and have back up
batteries.
Work Cited
http://www.windows2universe.org/mercury/Atmosphere/atmosphere.html
http://www.windows2universe.org/pluto/pluto_composition.html
Houghton Mifflin Science. The atmosphere and beyond.
Http://www.space.com/10915-space-technology-spinoffs-gps.html
http://theplanets.org/pluto/