solar system
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Our Solar System
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Our Solar System
Our solar system is made up of:
Sun Nine planets Their moons Asteroids Comets
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Inner PlanetsThe inner four rocky
planets at the center of the solar system are:
Mercury Venus Earth Mars
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Mercury
Planet nearest the sun Second smallest planet Covered with craters Has no moons or rings About size of Earth’s moon
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Venus
Sister planet to Earth Has no moons or rings Hot, thick atmosphere Brightest object in sky besides
sun and moon (looks like bright star)
Covered with craters, volcanoes, and mountains
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Earth
Third planet from sun Only planet known to have life
and liquid water Atmosphere composed of
composed of Nitrogen (78%), Oxygen (21%), and other gases (1%).
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Mars
Fourth planet from sun Appears as bright reddish
color in the night sky Surface features volcanoes
and huge dust storms Has 2 moons: Phobos and
Deimos
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Outer Planets
The outer planets composed of gas are :
Jupiter Saturn Uranus Neptune
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Jupiter Largest planet in solar
system Brightest planet in sky 60+ moons, 5 visible from
Earth Strong magnetic field Giant red spot Rings have 3 parts: Halo
Ring, Main Ring, Gossamer Ring
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Saturn 6th planet from sun Beautiful set of rings 31 moons Largest moon, Titan, Easily visible in the
night sky Voyager explored
Saturn and its rings.
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Uranus 7th planet from sun Has a faint ring
system 27 known moons Covered with clouds Uranus sits on its side
with the north and south poles sticking out the sides.
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Neptune
8th planet from sun Discovered through
math 7 known moons Triton largest moon Great Dark Spot
thought to be a hole, similar to the hole in the ozone layer on Earth
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Outermost Planet
Pluto, the outermost planet, is a small solid icy (dwarf) planet is smaller than the Earth's Moon.
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Pluto 9th planet from sun
(dwarf) Never visited by
spacecraft Orbits very slowly Moon, Charon, is
very close to Pluto and about the same size
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Asteroids
Small bodies Believed to be left
over from the beginning of the solar system billions of years ago
100,000 asteroids lie in belt between Mars and Jupiter
Largest asteroids have been given names
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Comets
Small icy bodies Travel past the Sun Give off gas and
dust as they pass by
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Remember the Planets
My Very Elegant Mother Just Served Us Noodle Pie e e a a u a r e l r n r r p t a p u c u t s I u n t t u s h t r u u o r e n s n y r e
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Solar SystemActivities
Order the Planets Fun with Planets Constellations of the
Northern Sky Planets Solar System