Our Solar SystemMost of our Solar System is “empty” –
meaning it lacks __________Our Solar System is made up of:
The SunPlanetsMoonsAsteroidsCometsMeteoroids
mass
Solar SystemsThe term “solar system” refers to any star (or
group of stars) that has non-stars _____________ around it
Our Solar System is made up of the ______ and all other objects that orbit under its _________________ influence
orbiting
gravitationalSun
The SunOur Solar System revolves a large mass at
the center called ___________Our Sun is a medium-sized
___________________ star about 5 billion years old
The Sun is the __________________ center of our Solar System
It makes up about ____ percent of the mass of the whole Solar System
The SunMain Sequence
gravitational
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The SunThe Sun
produces its energy in its _________ through a process called Nuclear _________
core
Fusion
The PlanetsThere are ___ planets in our Solar System
The planets are the largest objects that orbit the Sun
Planets are generally ____________ in shape
There are two types of planets in our Solar System:1. ________________________2. ________________________
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spherical
Terrestrial PlanetsJovian Planets
Terrestrial PlanetsThe Terrestrial Planets are the planets that are
__________ to the Sun
They are mostly ______ with very high ___________
The Terrestrial Planets in our Solar System are:MercuryVenusEarthMar
These planets are the most like Earth out of all of the planets in the Solar System
closest
solid densities
Jovian PlanetsThe Jovian Planets are _____________ from the Sun
These planets are mostly ___________ but do have a solid core
They are extremely large in ______ but low in ___________
The Jovian Planets in our Solar System are:JupiterSaturnUranusNeptune
far away
gaseous
size density
AsteroidsDefinition:An asteroid is a solid rocky or __________ body
that independently orbits the Sun
Asteroids have an irregular shape, however they get more ___________ as they get larger
They do not have an ______________
metallic
spherical
atmosphere
MoonsDefinition:A moon is a body that __________ a planet or
asteroid as those objects orbit the Sun
There are approximately _____ known moons
Moons can vary in size from larger than ___________ to only a few kilometers in diameter
orbits
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Mercury
MoonsMoons can vary greatly in their ______________Some moons have craters (like our moon),
volcanoes, ice, etc.
appearance
CometsDefinition:A comet is a solid composed mostly of _____
made from frozen water and methaneThey are usually covered in small pieces of
________ or metallic solidsMost comets are only 1 to 100 kilometers in
diameter
ice
rocky
CometsWhen comets
get near the Sun, some of their ices turn to ________
As theses gases are released they form spectacular _______ visible in the Earth’s sky
tails
gases
MeteoroidsDefinition:Meteoroids are very small solid fragments
that orbit the SunMost meteoroids are the size of a _______ or a
grain of sand
There is a difference between:MeteoroidsMeteorsand Meteorites
dime
MeteorsA meteoroid that is passing through the
Earth’s _______________ is called a METEOR
As they burn up, they leave a brief streak that we can see from Earth
atmosphere
MeteoriteIf a meteoroid survives its trip through
Earth’s atmosphere and lands on the _________________ it is called a METEORITE
Some meteorites have enough mass to create a _______________ in the Earth’s crust called an IMPACT CRATER
How would these impact craters be indicated on a topographic map?
Earth’s surface
depression