How many miles of empty space did they need to cover with the Earth being the size of a marble?
How big is the sun?
How big is venus?
What planet was at the edge of the solar system
How do they know their model was made correctly?
What is the name of the most widely accepted hypothesis about how or why the plants in the solar system have formed?
What existed before the solar system? What is the name of it?
The solar nebulla existed because of
What pulled the gases to the center of the solar nebula was . The speed of the rotation .
What is an accretion disk?
What causes matter to collect more and more and where is it heading?
What causes the gases in the accretion disks to warm?
As mass increased, what also increased...
As a result of gravity, mass, and pressure increasing, what else began to rise?
A ball of hot gas developed in the center of the accretion creating a .
The pressure, heat, and gravity in the protostar is enough to atoms together.
Outside of the star, matter was froming into
Protoplanets are made up of
How do protoplanets grow?
Why do planets travel in the same direction on the same plane?
Why are more rocky/terrestial planets located closer to the sun?
A) List the gaseous planets:
B) Where did they form?
Planets differentiated into layers as they
Every time you see stars forming, what else should you consider?