Solar system astronomy

Front

What would you call a glowing cloud of gas and dust in outer space?

Back

Nebula

Front

What is created when a star undergoes a supernova explosion?

Back

a Nebula

Front

What force causes a Nebula to stop expanding, and then to start collapsing inward?

Back

Gravity

Front

As a nebula collapses inward because of gravity, what percentage of the matter ends up forming a new star?

Back

99%

Front

The material of the nebula that is not incorporated into the new star forms

Back

planets, moons, asteroids, and comets

Front

As the nebula collapses, the center ______ because of conversion of kinetic energy to thermal energy.

Back

Heats up

Front

As the Nebula collapses, it starts _______ faster and faster.

Back

Spinning

Front

Rapid rotation of the collapsing nebula causes the remaining material to form a ______ shape, instead of the 3 dimensional sphere it was originally.

Back

Disk

Front

The remaining 1% of material in the Nebula's spinning disk starts combining together because of gravity, forming:

Babies

,

Planetismals

,

ProtoStars

,

Protoplanets

Back

Planetismals

Front

As Planetismals orbit the new star, as they come near each other combine getting larger and larger, forming _________.

Back

Protoplanets