To Scale: The Solar System

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 existed before the solar system? What is the name of it?

The solar nebulla existed because of

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...

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?