Mercury is the smallest
planet. It is closest to the sun.
It has the shortest year.
Earth is the only planet
that can sustain life. Earth
is the only planet with
water. Earth's surface has
three layers.
Venus has a thick
atmosphere that traps
heat. Venus is Earth's
sister planet.
Mars is red because it has
iorn rich soil.It, like Earth,
has Polar Ice caps. It also
is the last inner planet.
Jupiter is the first outer
planet. It also is the
largest. It has a giant
storm on it called the Great
Red Spot
Uranus is tilted on it's axis so
that sometimes it's poles face
the sun. It can fit 64 Earths in
it, and is Neptune's twin
Saturn is famous for it's rings.
It has over 1,000 rings, and
spins so fast it is flat on bottom
and top.
It is so cold on Neptune you
need skin as thick as a polar
bears. There are winds up to
2000 k.p.m, and sometimes
Pluto swerves in front of
Neptune
The sun takes up 99% of the mass in our
solar system. Solar flares from the sun
that reach Earth cause the Northern
Lights. The sun's core is warm enough
for nuclear combustion.
Asteroids mainly exist in the
asteroid belt. Many moons had once
been asteroids, and asteroids are the
source for meteoroids.
Meteoroids turn into meteors when
they hit the earths atmosphere. Then
they are called shooting stars or
falling stars. Once they hit the
surface, they are meteorites, and they
Comets have four parts: the
coma, the nucleus, the head and
the tail. Sometimes you can see
comets for days, and the head of
the comet is the brightest part.
http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level1/
mercury.html
http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level2/
mars.html
http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level2/
venus.html
http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level2/
earth.html
http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level2/
jupiter.html
http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level2/
saturn.htm
http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level2/
uranus.html
http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level2/
neptune.html
http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level2/sun.html
http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level2/
meteoroids.html
http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level2/
asteroids.html
http://starchild.gsfc.nasa.gov/docs/StarChild/solar_system_level2/
comets.html