our solar system intro video intro video. your parents’ solar system
TRANSCRIPT
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Your Parents’ Solar Your Parents’ Solar SystemSystem
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2121stst Century Solar Century Solar SystemSystem
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The Solar System: The Solar System: List of List of IngredientsIngredients
IngredientIngredient
SunSun
JupiterJupiter
Other planetsOther planets
Everything elseEverything else
Percent of total Percent of total mass: mass:
99.8%99.8%
0.1%0.1%
0.05%0.05%
0.05%0.05%
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Our Solar SystemOur Solar SystemOur solar system is
made up of:
Sun Nine planets Their moons Asteroids Comets
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The SunThe Sun
Mostly Hydrogen & HeliumMostly Hydrogen & Helium ~4.6 billion years old~4.6 billion years old
Shines because it is hot:Shines because it is hot: Surface Temp ~6000 CSurface Temp ~6000 C Mostly Visible, UV & IR lightMostly Visible, UV & IR light
Kept hot by nuclear Kept hot by nuclear fusion in its core:fusion in its core:
Builds Helium from Builds Helium from Hydrogen fusion.Hydrogen fusion.
Will shine for ~12 billion Will shine for ~12 billion yearsyears
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Inner PlanetsInner PlanetsThe inner four ““rocky”rocky”
planets at the center of the solar system are:
Mercury Venus Earth Mars
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MercuryMercury
Planet nearest the sun Second smallest planet Covered with craters Has no moons or rings About size of Earth’s moon Extremely hot = 450 o C & Cold @ -
150
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VenusVenus Sister planet to Earth Has no moons or rings Hot, 464 o C Temperature, thick
atmosphere Brightest object in sky besides sun and
moon (looks like bright star) Covered with craters, volcanoes, and
mountains
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EarthEarth
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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MarsMars
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 PlanetsOuter Planets
The outer planets are considered “giant gas”giant gas” planets:
Jupiter Saturn Uranus Neptune
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JupiterJupiter
Largest planet in solar system
Brightest planet in sky 60+ moons, 5 visible
from Earth Strong magnetic field Giant red spot
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SaturnSaturn
6th planet from sun Beautiful set of
rings 31 moons Largest moon, Titan, Easily visible in the
night sky
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UranusUranus 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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NeptuneNeptune
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 Outermost Dwarf PlanetDwarf Planet
Pluto, the outermost , is a small solid icy planet is smaller than the Earth's Moon.
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PlutoPluto
9th planet from sun (usually)
Never visited by spacecraft
Orbits very slowly Moon, Charon, is
very close to Pluto and about the same size
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AsteroidsAsteroids
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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CometsComets
Small icy bodies Travel past the Sun Give off gas and
dust as they pass by
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Writing ActivityWriting Activity
Write a paragraph about the solar system. Include 5 facts covered in this presentation.