EM spectrum
Star Life Cycles
Galaxies
Moons
HR Diagram
100
EM waves cannot travel through space.Is the statement true or false
false
100
The only type of star big enough to have a supernova.
What are supergiants?
100
Galaxies with arms and new stars
spiral galaxy
100
What happens when the shadow of Earth falls on the moon
Lunar eclipse 
100
This type of stars have a high luminosity and low temperature.
What are white dwarfs?
200
relationship between wavelength and frequency
they are inversely proportional
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
different appearances of the moon due to change in position is
phases of moon
200
This type of star has a high luminosity and high temperature.
What are red supergiants?
300
waves used by cops in radar systems
microwaves
300
The one factor that determines the outcome of a star's life cycle.
What is starting mass?
300
Milky way is a 


barred spiral galaxy

300
Difference between satellite and a moon
satellites are natural or artificial bodies that revolve around a planet.
300
This is the most abundant type of star on an HR diagram.
What are main sequence stars?
400
name the highest energy and least energy waves
highest: gamma 

least: radio

400
The joining of two nuclei of hydrogen atoms to form helium with extreme amounts of energy being released.
What is nuclear fusion?
400
compare and contrast spiral and elliptical galaxies


the shape and the age of stars are different

400
The moon does not produce its own light.How can the moon be visible from Earth
moon reflects the light from the sun
400
What is the variable on the X-axis of HR diagram
Temperatrue
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
What is a local group?
group of several neighboring galaxies
500
Difference between total and annular solar eclipse
total solar eclipse is when the moons disk completely covers the sun and annular is when a thin solar ring is visible around the edge of the moon
500
Which type of stars appear in the main sequence of HR diagram
the stars that have enough hydrogen for the nuclear fusion reaction
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