Stars
Star Life Cycles
History of the Universe
Galaxies
HR Diagram
100
The property of stars that scientists use to determine the temperature of a star.
What is color?
100
The only type of star big enough to have a supernova.
What are supergiants?
100
This is what the universe started as, before the Big Bang.
What is a singularity?
100
A type of galaxy with new stars.
What is spiral galaxy?
100
This type of stars have a high luminosity and low temperature.
What are white dwarfs?
200
The tool used to compare star brightness to star temperature
What is an HR diagram?
200
This stage that all stars have to pass through.
What is a main sequence?
200
This is a star explosion.
What is a supernova?
200
A type of galaxy with a blobby center.
What is elliptical galaxy?
200
This type of star has a high luminosity and high temperature.
What are red supergiants?
300
The most common elements in which stars are composed of.
What are hydrogen and helium?
300
The one factor that determines the outcome of a star's life cycle.
What is starting mass?
300
These were also created when an asteroid struck the Earth and created the moon.
What are seasons?
300
This is the type of star system and galaxy in which our star and solar system belongs.
What is a single star system and a spiral galaxy?
300
This is the most abundant type of star on an HR diagram.
What are main sequence stars?
400
The only star in our solar system
What is the sun?
400
The joining of two nuclei of hydrogen atoms to form helium with extreme amounts of energy being released.
What is nuclear fusion?
400
This event took up 99.9% of the mass in the solar system.
What is the creation of the sun?
400
This is where stars are born.
What is a nebula?
400
This is the unit that we use for luminosity or brightness.
Solar Mass
500
The unit used to measure the distance between stars.
What is a light year?
500
This is what is left after a supernova if the mass is 3 times that of the sun's mass.
What is a black hole?
500
This was believed to have happened 13.8 billion years ago.
What is the Big Bang?
500
The shift that shows the universe expanding.
What is red shift?
500
These are the two factors that luminosity depend on.
What are size and temperature.
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