Interstellar Medium
Main Sequence Star
Nebula
Protostar
Fusion
100
These two things make up interstellar medium.
What is dust and gas?
100
Newly formed stars begin life at this edge of the main sequence.
What is the lower edge?
100
This is the Latin word for cloud.
What is nebula?
100
Protostars form from this.
What is a molecular cloud?
100
This type of fusion occurs in a star.
What is nuclear?
200
This gas makes up 75% of the interstellar medium.
What is hydrogen?
200
Main sequence stars are on this diagram
What is H-R diagram?
200
This type of nebula is dense clouds of gas and dust that obstruct the view of more distant stars.
What is dark nebula?
200
Protostars turn into this type of star
What is main sequence?
200
Hydrogen atoms are turning into this atom.
What is helium?
300
This gas makes up 25% of the interstellar medium.
What is helium?
300
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What is main sequence stars?
300
There are this many types of nebulas.
What is three?
300
The protostar converts it's gravitational energy into this type of energy.
What is thermal energy?
300
Fusion happens here in a star.
What is the core?
400
This makes up roughly 1% of interstellar medium.
What is interstellar dust?
400
Main Sequence stars release a tremendous amount of this.
What is energy?
400
This nebula is produced when starlight scatters from a dusty nebula.
What is reflection nebula?
400
The Sun took this long to reach the main sequence stage.
What is 30 years?
400
The force of this slowly pulls together particles within a protostar.
What is gravity?
500
This is a cloud of interstellar dust and gas within space.
What is a nebula?
500
Percentage that an average star spends it's life on the main sequence.
What is 90%?
500
This nebula is produced when a hot star excited the gas near it to produce an emission spectrum.
What is emission nebula?
500
reactions that happen during fusion.
What is the triple alpha process?
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