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Vocabulary
Structure of the Universe
Stars
Life Cycle of Stars
Vocabulary2
100
A large celestial body that is composed of gas and emits light.
What is a star
100
Our solar system is located in this galaxy.
What is Milky Way
100
Define star
A large celestial body that is composed of gas and emits light.
100
Where do stars form?
In a nebulae
100
The distance that light travels through space
Light-year
200
A spherical body that orbits the sun
What is a planet
200
How does the composition of a star differ from the composition of a planet?
Stars are made up of gas
200
What color is the hottest star?
Blue
200
What is the process called where stars emit energy?
Nuclear Fusion
200
The brightness of a star
What is luminosity
300
A large collection of stars, gas, and dust that is held together by gravity.
What is a galaxy.
300
Name the 3 types of galaxies.
Spiral, elliptical, and irregular
300
How is star brightness measured?
Apparent Magnitude
300
The most massive supergiants collapse to form...
Black holes
300
A large cloud of gas and dust.
What is a nebula
400
The collection of large and small bodies that orbit a central star.
What is a solar system
400
Define universe
Space and all the matter and energy in it.
400
Compare the sizes of other stars to the sun.
The sun is very small compared to other stars. It looks large because of how close it is to Earth.
400
Gigantic explosion in which a high mass star throws its outer layers into space
What is a supernova
400
A hot, dense core of matter that remains from the collapse of a low-mass star.
What is a white dwarf
500
The measure of a star's brightness as seen from Earth.
What is apparent magnitude
500
Describe the planets in the solar system.. what groups are they put in?
MVEMJSUN MVEM - terrestrial planets JSUN - Gas giants
500
What is the difference between apparent magnitude and absolute magnitude?
Apparent is what is seen from Earth, absolute is how bright the star would actually be.
500
When does a star become a red giant?
When nuclear fusion stops
500
A collapse supergiants core
A neutron star