Transcript Our Solar System

Our Solar
System
Alabama Course of Study # 10
Describe components of our solar system.
Defining comets, asteroids, and meteors.
The Solar System consists of the Sun and
the other celestial objects that are
gravitationally bound to it.
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The major features of the Solar System
are Pluto, Neptune, Uranus, Saturn,
Jupiter, the asteroid belt, the Sun,
Mercury, Venus, Earth and its Moon, and
Mars. A comet is also seen on the left.
http://en.wikipedia.org/wiki/Solar_System
Included in the Solar System is the Sun.
The Sun is the Solar System’s parent star.
It is classified as a moderately large yellow
dwarf and is rather large and bright.
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The four terrestrial inner planets include
Mercury, Venus, Earth, and Mars.
http://en.wikipedia.org/wiki/Solar_System
Mercury is the closest planet to the Sun
and the smallest planet. Mercury has no
natural satellites, and its only known
geological features besides impact craters
are “wrinkle-ridges”.
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Venus is close in size to Earth and like
Earth has a thick silicate mantle around an
iron core.
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Earth is the largest and densest of the inner planets. It is
the only one to have current geological activity, and the
only planet known to have life. It has one satellite, the
Moon, the only large satellite of a terrestrial planet in the
Solar System.
http://images.google.com/imgres?imgurl=http://www.southbaymobilization.org/newsroom/earth/USFromSpaceW
ars1024.jpg&imgrefurl=http://www.southbaymobilization.org/newsroom/earth.htm&h=384&w=512&sz=181&tbnid
Mars is smaller than Earth and Venus. It
possesses a tenuous atmosphere of
mostly carbon dioxide.
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126&prev=/images%3Fq%3Dmars%2Bpictures%26um%3D1&start=1&sa=X&
oi=images&ct=image&cd=1
An asteroid belt occupies the orbit
between
Mars
and
Jupiter.
Asteroids are small Solar System
bodies composed mainly of rocky
and metallic non-volatile minerals.
An asteroid belt occupies the orbit
between Mars and Jupiter. Asteroids are
mostly small Solar System bodies
composed mainly or rocky and metallic
non-volatile minerals.
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The four gas giant outer planets include
Jupiter, Saturn, Uranus, and Neptune.
http://en.wikipedia.org/wiki/Solar_System
Jupiter has a mass that is 2 ½ times all the
other planets put together. It is composed
primarily of hydrogen and helium.
http://images.google.com/imgres?imgurl=http://nssdc.gsfc.nasa
.gov/image/planetary/jupiter/jupiter_gany.jpg&imgrefurl=http://w
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858&w=758&sz=59&tbnid=viGnDqCT36tlFM:&tbnh=145&tbnw
=128&prev=/images%3Fq%3Djupiter%2Bpictures%26um%3D
1&start=1&sa=X&oi=images&ct=image&cd=1
Saturn is famous for its
extensive ring system. It is
similar to Jupiter in its
atmospheric makeup.
Saturn is famous for its extensive ring
system. It is similar to Jupiter in its
atmospheric makeup.
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Uranus is 14 times the size of Earth. It is
the lightest of the outer planets. It orbits
the Sun on its side.
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start=2&sa=X&oi=images&ct=image&cd=2
Neptune, though slightly smaller than
Uranus, is more massive and therefore
denser. It radiates more internal heat, but
not as much as Jupiter or Saturn.
http://images.google.com/imgres?imgurl=http://home.xtra.co.nz/hosts/Wingmakers/Neptune_Intbrowse.jpe&imgrefurl=http://home.xtra.co.nz/hosts/Wingmakers/The%2520planet%2520Neptune.html&h=372&w=500&sz=25&
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Comets are small Solar system bodies,
usually
only
few bodies,
kilometers
Comets
are small
Solara system
usually across,
largely
volatilelargely
ices.of When a
only composed
a few kilometers
across,of
composed
volatile
ices. When
a comet
inner Solar
comet
enters
the enters
innertheSolar
System, its
System, its proximity to the Sun causes its icy
proximity
to and
theionise,
Sun creating
causesa coma:
its icya surface
surface
to sublimate
and
ionise,
creating
long to
tail sublimate
of gas and dust
often
visible to
the nakeda coma:
eye. a long tail of gas and dust often visible to
the naked eye.
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meteorisis the
the visible
A Ameteor
visible event that occurs
when
a meteoroid
oraasteroid enters the
event
that
occurs when
earth's atmosphere
and becomes brightly
meteoroid
or
asteroid
enters
earth's
visible. the
atmosphere and becomes
brightly visible.
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A meteorite
is a portion
A meteorite
is a portion of a meteoroid or
of a meteoroid or asteroid
asteroid
that
survives
its
passage
through
that survives its passage
the theatmosphere
and impact with the
through
atmosphere
and ground
impact without
with the
being destroyed.
ground without being
destroyed.
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