What are stars?
What's inside?
Formation
Death
Misc.
100

The force that makes them spherical

Gravity

100

The place where nuclear fusion occurs

The Core

100
The area in space where they're "born"

Nebulae

100

Red dwarf is a stage in the life of this mass category of star

Low Mass Star

100

The name for two stars in a system

Binary Star System

200
The fourth state of matter that makes up stars

Plasma

200

The layer that's visible to us

The Photosphere

200

The place within a nebula where stars form

Stellar Nursery

200

The type of nebula average mass stars create

Planetary Nebula

200

Black stars are made of this gas

Helium

300

The process that releases energy as light from the star

Nuclear Fusion

300

The outermost layer of a star

The Corona

300

The name of a star before it's actually a star 

Protostar

300

Average mass stars expand into this once hydrogen fusion stops

Red Giant

300

Protostars move in this way to attract mass

A spinning motion

400

The heavier atoms that result when smaller atoms join together

Helium, lithium, or carbon

400

The area where energy radiates outward from the core

The Radiative Zone

400

The gas that mainly makes up nebulae

Hydrogen

400

The remains of a star at the center of a planetary nebula

White Dwarf
400

The measurement label for the dimensions of nebulae

Light Years

500

Gravity causes this part of atoms in stars to fuse  

The Nuclei
500

The layer that carries heat towards the outer layers of the star

The Convective Zone

500

The heaviest element fused during nuclear fusion

Iron

500

The explosion that occurs when the outer layers of neutron stars are blasted away

Supernova Explosion

500

Light cannot escape from this

Black Hole