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The Universe: Essential question: Why is it important to study the universe?
Transcript of The Universe: Essential question: Why is it important to study the universe?
The Big Bang Theory
Huge explosion that created Everything
Essential question: Why is it important to study Outer Space?
Called the "
The sun is
in the center
200 billion stars
There are several shapes:
Our Solar System:
Venus These planets are all
Earth smaller in
Mars GREATER in
separates the 2 groups of planets
JOVIAN GAS GIANTS
Saturn These planets are all
Uranus GREATER in
Neptune smaller in
4 rocky Terrestrial Planets:
1 star and everything that circulates around it
Asteroid belt (between Mars and Jupiter in ours)
It takes about 8-9 months to travel to Mars
They are currently working on a "Plasma Engine"
that can travel to Mars in 40 days
The next closest star is so far away
that it takes light over 4 YEARS to
travel the distance. 4.25 light years.
The next closest star with a habitable
planet is 5x farther away than that!
Meteorites and comets will make
if they impact the Earth
How planets move:
Period of ROTATION
= a day
Period of REVOLUTION
= a year The farther out a planet is, the
its period of revolution
Move in paths called "
" around the sun
These orbits are
or oval in shape
Appear to move in
across our sky
Saturn would float in water if we
could find a big enough tub
(and it's expanding)
Most things are moving
So lets practice..
How old is the Universe?
What is the proof that the universe began with a large explosion?
What is the name of this explosion theory?
How many planets do we have?
What is the name of our galaxy?
What shape galaxy do we have?
How many stars make up our galaxy?
Put in order of smallest to biggest: Galaxy, Universe, Solar system
Name the four Jovian planets.
What is a comet?
Another name for a day is a period of ________
Another name for a year is a period of ________
What separates the 4 rocky planets from the 4 gas giants?
What appears to loop across the sky? stars, comets, planets, moons
If a meteorite hits the Earth it will create an ____________________
True or False: The Sun is in the center of the Milky Way galaxy
4 Jovian Gas Giants
are balls of rock and ice that orbit the sun
"A dirty snowball"