the difference between heliocentric and geocentric models
What is one module is sun centered and one module is earth centered
100
the difference between afelion and perihelion
What is one is close to the sun and one is far away
100
how does the sun crest energy
What is nucular fusion
100
Name the 4 terrestrial planets
What is Mercury, Venus, Earth, and Mars
100
name the four gas giant planets
What is Jupiter,Saturn,Uranus,neptune
200
the wheels on wheels system
What is ptolemy
200
definition of planitecimal
What is a building block for a planet
200
where does the sun create energy
What is the core
200
What planet has iron core
What is Mercurey
200
the planet that has a den city less than water
What is saturn
300
observed Jupiter's moons
What is galileo
300
a protosteller disk
What is a flattened nebula
300
definition of differential rotation
What is the rotation of a body in which different parts of a body have different periods of rotation
300
What planet is sililar to Earth in size and mass
What is Venus
300
the planet that is almost tilted on its side
What is uranus
400
attempted to measure the relative distances to the sun
What is aristotle
400
a solar nebula
What is a cloud from which the solar system formed
400
the outer atmosphere of the sun
What is corona
400
which planet has a title axis of 0 degrees
What is Uranus
400
the planet that has the strongest wind
What is neptune
500
found the planets orbit around the sun in elipses
What is kepler
500
name all of Kepler's laws
What is 1=planetary orbits are eclipses
2=planets moov faster when closer to the sun
3=compares the distance of a planet to the sun to the time it takes to orbit