? Web viewHumans have always wondered about the sky, the stars and the universe! ... What do you notice
Post on 31-Jul-2018
L.O: SWBAT describe the models of the solar system.(blue)2
1) The ______________________________________
3) All other ________________________________________________that
____________________________ around the sun
Humans have always wondered about the sky, the stars and the universe!
Until recently, many of our ideas about the universe were wrong!
The ______________________________________ Model
What do you notice about this model of the solar system?
The geocentric model: ___________________________ is the stationary
_________________________ of the universe. All _________________________ bodies
_________________________ around Earth.
The geocentric model made sense to people, it ________________________the sun, moon & stars revolves the Earth!
The Geocentric model explained how the sun, moon & stars moved But, It
didnt explain the _____________________________________________!
The word _________________________________ means __________________________ in Greek. Because the Greeks notice that the planets seem to randomly wander across the sky!
The planets undergo _______________________________: first: they travel
_________________________, then they _________________________and
then they go _______________________________ again!
The geocentric model could _____________________explain retrograde motion ( why the planets seem to wander randomly across the sky).
The _______________________ is the stationary _______________________ of
the universe. All the _______________________ including Earth
_______________________ around the sun.
Later Johannes _________________s laws of planetary motion and Isaac
_________________s laws of gravity refined the heliocentric model.
Since the Renaissance, we have learned that the universe is even bigger than our solar system!
All the stars in the sky are other _____________________________!
our Milky Way Galaxy has at least _____________________other stars in it.
Many stars have their own _________________ of _________________
The UNIVERSE contains ______________________________________________of galaxies like the Milky Way.
Some scientist believe that there are ______________________________________