Download 8th Planets of the solar system Planets Rocky Gas Giants

Planets
The Planets
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
Pluto*
My
Very
Eager
Mother
Just
Served
Us
Nine
Pizzas
* Pluto is no longer defined as a planet .
The Rocky Planets
(The Terrestrial Planets)
Mercury
Mercury was named by the Romans after the fleetfooted messenger of the gods because it seemed to
move more quickly than any other planet. It is the
closest planet to the Sun, and second smallest planet in
the solar system. Its diameter is 40% smaller than Earth
and 40% larger than the Moon. It is even smaller than
Jupiter's moon Ganymede and Saturn's moon Titan.
The Rocky Planets
(The Terrestrial Planets)
Venus
Astronomers refer to Venus as Earth's sister planet.
Both are similar in size, mass, density and volume.
Both formed about the same time and condensed
out of the same nebula. However, during the last few
years scientists have found that the kinship ends
here. Venus is very different from the Earth. It has no
oceans and is surrounded by a heavy atmosphere
composed mainly of carbon dioxide with virtually no
water vapor.
The Rocky Planets
(The Terrestrial Planets)
Earth
Earth is the 3rd planet from the Sun at a distance of
about 93 million miles. It takes 365.256 days for the
Earth to travel around the Sun and 23.9345 hours for
the Earth rotate a complete revolution. It has a
diameter of 12,756 kilometers (7,973 miles), only a
few hundred kilometers larger than that of Venus.
Our atmosphere is composed of 78 percent nitrogen,
21 percent oxygen and 1 percent other.
The Rocky Planets
(The Terrestrial Planets)
Mars
Before space exploration, Mars was considered the best
candidate for harboring extraterrestrial life. Astronomers
thought they saw straight lines crisscrossing its surface. This
led to the popular belief that irrigation canals on the planet
had been constructed by intelligent beings. In 1938, when
Orson Welles broadcasted a radio drama based on the
science fiction classic War of the Worlds by H.G. Wells,
enough people believed in the tale of invading Martians to
cause a near panic.
The Gas Giants
(The Jovian Planets)
Jupiter
Jupiter is the fifth planet from the Sun and is the largest
planet in the solar system. If Jupiter were hollow, more than
one thousand Earths could fit inside. Jupiter has a very faint
ring system, but is totally invisible from the Earth. (The rings
were discovered in 1979 by Voyager 1.) The atmosphere is
very deep, perhaps comprising the whole planet, and is
somewhat like the Sun. It is composed mainly of hydrogen
and helium, with small amounts of methane, ammonia,
water vapor and other compounds.
The Gas Giants
(The Jovian Planets)
Saturn
Saturn is the second largest in the solar system with an equatorial
diameter of 119,300 kilometers (74,130 miles). Much of what is
known about the planet is due to the Voyager explorations in 198081. Saturn is visibly flattened at the poles, a result of the very fast
rotation of the planet on its axis. Its day is 10 hours, 39 minutes long,
and it takes 29.5 Earth years to revolve about the Sun. The
atmosphere is primarily composed of hydrogen with small amounts
of helium and methane. Saturn is the only planet less dense than
water (about 30 percent less). In the unlikely event that a large
enough ocean could be found, Saturn would float in it.
The Gas Giants
(The Jovian Planets)
Uranus
Uranus is distinguished by the fact that it is tipped
on its side. Its unusual position is thought to be the
result of a collision with a planet-sized body early in
the solar system's history. The atmosphere of Uranus
is composed of 83% hydrogen, 15% helium, 2%
methane and small amounts of acetylene and other
hydrocarbons. Methane in the upper atmosphere
absorbs red light, giving Uranus its blue-green color.
The Gas Giants
(The Jovian Planets)
Neptune
Neptune is the outermost planet of the gas giants. It has an
equatorial diameter of 49,500 kilometers (30,760 miles). If
Neptune were hollow, it could contain nearly 60 Earths.
Neptune orbits the Sun every 165 years. It has eight moons,
six of which were found by Voyager. The first two thirds of
Neptune is composed of a mixture of molten rock, water, liquid
ammonia and methane. The outer third is a mixture of heated
gases comprised of hydrogen, helium, water and methane.
Methane gives Neptune its blue cloud color.
And then there is
Pluto . . .
Pluto is the second largest known dwarf planet
and tenth largest orbiting the Sun. From its
time of discovery in 1930 to 2006 it was
considered to be the ninth planet in the solar
system. The uniqueness of Pluto's orbit,
rotational relationship with its satellite, spin
axis, and light variations all give it a certain
appeal.
Thank you to the following resource sites! 
https://www.youtube.com/watch?v=onvSeB
S6nLM (youtube cosmos solar system)
http://www.solarviews.com/eng/solarsys.htm
PowerPoint clipart
http://pds.nasa.gov/planets/