Discovering galaxies Bursting through the limits of space and time
Components of Space. Universe All of space that includes many galaxies All of space that includes...
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Transcript of Components of Space. Universe All of space that includes many galaxies All of space that includes...
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Components of Space
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Universe
All of space that includes many galaxies
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GalaxyA system of stars mixed with gas and
dust.We are part of the Milky Way Galaxy,
which is a spiral galaxy.The next closest galaxy is called
Andromeda.
There are approximately 200 billion stars in our galaxy.
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Solar System
The solar system includes the sun and all the bodies that orbit around it.
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Planet
A spherical body that orbits around the sun and has its own gravity
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Put the following in order from largest to smallest:
Solar System Universe Galaxy Planet
UniverseGalaxy
Solar System
Planet
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Inner Planets
These are known as terrestrial planets because they are dense and rocky
MercuryVenusEarthMars
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Asteroid & Asteroid Belt
Asteroid – A large rock which is smaller than a planet and orbits the sun
Asteroid Belt – asteroids that revolve around the sun between the orbits of Mars and Jupiter
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Outer Planets
These are known as the gas giants because they are very large and mostly made of gas
JupiterSaturnUranusNeptune
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Dwarf Planet - Pluto
Pluto is now classified as a dwarf planet because it is very small
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Solar System Diagram
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Moon
A naturally occurring satellite orbiting around a planet
Some planets have more than 1 moon
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StarA massive ball of
luminous gas that are held together by their own gravity
A star creates its own light
The life cycle of a star is determined by its mass.
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Constellation
A group of stars that form a pattern in the sky
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Comet
An icy body that releases gas or dust and has a long oval orbit
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Meteoroids & Meteor & Meteorites
Meteoroid – a chunk of rock or dust that usually comes from comets or asteroids
Meteor – a meteoroid that enters Earth’s atmosphere and completely burns
Meteorite – a small rock that lands on earth from space
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Additional Links
http://www.kidsastronomy.com/solar_system.htm
http://science.nationalgeographic.com/science/space/solar-system
http://www.nasm.si.edu/research/ceps/etp/etp.htm
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Ticket Out
Which planets are terrestrial and which planets are gas planets?