The property of stars that scientists use to determine the temperature of a star.
What is color?
100
Nebula, then protostar, main sequence, giant, and then finally white dwarf
What are the stages of a low mass star?
100
The brightness of a star as it is seen from Earth.
What is apparent magnitude?
100
A cloud of dust and gas.
What is a nebula?
100
Two main features of the universe.
What are star systems and galaxies?
200
The method used to measure the distance of stars close to Earth by viewing the star from Earth's location at one time during the year and then six months later.
What is parallax?
200
This stage occurs when the core of a star has fused all of its hydrogen into helium.
What is a giant star?
200
Brightness of a star if all stars are equal distance from Earth.
What is luminosity or absolute magnitude?
200
Nuclear fusion begins.
What is a main sequence star?
200
This is used to determine the motion of stars and galaxies.
What is the Doppler effect?
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
The chart that compares temperature and brightness of stars.
What is the H-R diagram?
300
The star contracts and releases a lot of energy.
What is a super nova?
300
The apparent change in the wavelength of a moving object.
What is the Doppler effect?
400
The coolest stars.
What is red?
400
The joining of two nuclei of hydrogen atoms to form helium with extreme amounts of energy being released.
What is nuclear fusion?
400
Besides temperature and brightness, the H-R Diagram shows ……..
What is size and color?
400
The gravitational force is so strong.
What is a black hole?
400
An explanation that states all matter and energy exploded from one point and has been expanding apart ever since.
What is the big bang theory?
500
The unit used to measure the distance between stars.
What is a light year?
500
What is the last stage in the life of a Massive star.
What is a black hole or neutron star?
500
The distance stars are from the Earth to measure luminosity.
What is 32.6 light years?
500
A teaspoon of this would weigh a hundred million tons.
What is a neutron star?
500
The main piece of evidence that supports the big bang theory.
What is the red shift of all stars and galaxies in our universe?