Vocabulary
Vocabulary
Concept
Concept
Concept
100
A Star
What is a large, hot ball of gases which is held together by gravity and gives off its own light?
100
A unit of measurement that astronomers use to measure distances in space.
What is a light year.
100
Most supernovas occur in distant _____ and are not easily observable from Earth although a few have been visible.
What are galaxies.
100
Our Sun is this kind of star.
What is a main-sequence star.
100
Stars are at different __________ from Earth.
What is distances.
200
This is a star that explodes.
What is a supernova.
200
A number of stars that appears to form a pattern in the sky.
What is a constellation.
200
Most of the ____ in the universe are "cooked" inside of stars.
What are elements.
200
At the final stages of a star's life cycle, it becomes a ______ or _____.
What is a giant or a supergiant.
200
A protostar becomes this.
What is a main sequence star.
300
A star begins its life as an enormous cloud of gas and dust in space.
What is a nebula.
300
The magnitude of a star as you see it in the night sky.
What is apparent magnitude.
300
Elements are spread over the universe by _____.
What are supernovas.
300
Supergiants can become ______ if the core is very, very massive.
What are black holes.
300
The existence of black holes is _____; none have been absolutely proven to exist.
What is theoretical.
400
This is the apparent shift in an object's location when viewed from 2 positions.
What is a parallax.
400
A young star is called this.
What is a protostar.
400
Many black holes have these.
What is a companion star.
400
This is the area of a star that is related to its color.
What is its surface temperature.
400
The colors of the coolest stars.
What are red and orange.
500
Most supernova remnants become ______, extremely dense stars made entirely of tightly packed neutrons.
What are neutron stars.
500
Tthe brightness of a star.
What is magnitude.
500
The color of the stars that are neither the hottest nor the coolest.
What is yellow.
500
High temperatures cause this to happen in a star.
What is expand
500
The colors of the hottest stars.
What are blue and white.
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