Planets
Which planet currently supports life?
Earth
What shape do all orbits have?
What is elliptical?
The first stage of solar system formation is ___________
What is a nebula?
Comets will have 2 tails, What are the names of the structures
Dust Tails and Ion Tails
One of these caused the extinction of the dinosaurs
Asteroid
What is the largest planet in the solar system?
Jupiter
The backward motion of the outer planets is called___________ ___________
What is Retrograde Motion?
What is the main force that caused objects to clump together in the solar systems formation?
What is gravity?
Will a comets tail ever face towards the sun?
No
The sun produces energy through what process?
Nuclear fusion
Which is the furthest planet in the solar system?
Neptune ( not pluto)
An orbit that is almost perfectly circular will be _____________ than an orbit that is more oval shaped
What is less Eccentric?
After the sun formed, the left over material made ___________
what are planets, moons, dwarf planets, comets, meteoroids, asteroids
These objects are also known as dirty snowballs
Comets
These objects are also known as shooting stars.
Meteoroids
As you move away from the sun, how does the distance between planets change
They get further and further away form each other
Planets in the outer solar system take ____________time to orbit the sun
longer
The asteroid belt formed between which two planets
Jupiter and mars
The outer planets are made out of what kinds of materials ?
Gasses and ice
Why is pluto not a planet ?
It is too small/ Not enough gravity
Inner planets tend to be made out of what kinds of materials ?
Rocky and metal materials
Earth's orbit has an eccentricity of 0.016
Mars' orbit has an eccentricity of 0.094
Which planet has a more eccentric orbit?
Mars
In the solar systems early formation, after the sun had been born, the nebula collapsed into a spinning disk of compressed dust and gas. What is this structure called?
What is a protoplanetary disk?
As you get further from the sun, How does the density of planets change?
Planets are made of less dense materials
Why are inner planets more dense than outer planets
Solar wind pushed out the lighter materials into the outer solar system