Unlocking the Universe
Characteristics of Stars
Lives of Stars
Star Systems & Galaxies
The Expanding Universe
100
Noticed by scientists, it helps them measure how far or close something is moving in relation to earth.
What is red-shifting or blue-shifting? BONUS Explain what they are.
100
OBAFGKM
What is a the order for spectral classification?
100
All stars begin as this.
What is a nebula?
100
The core, radiative, convective and photosphere.
What are the four sections of the sun?
100
The theory of how the universe formed.
What is the big bang.
200
A classification of different wavelengths that can help investigate the universe.
What is the electromagnetic spectrum?
200
These are what is used to classify stars.
What is color, temperature, size, and brightness.
200
What determines how long a star will exist?
What is its mass? Stars will more mass live shorter than stars with less mass.
200
A huge group of single stars, star systems, star clusters, dust, and gas bound together by gravity.
What is a galaxy.
200
This is where our universe started from.
What is an infinitely dense point?
300
By doing this with a telescope, it allows scientists to see different parts of the sky.
What is moving both the location and the height of telescopes?
300
These stars have high luminosity but low temperature.
What are Red super giants (or red giants)?
300
As a white dwarf increases in mass, this happens to it's diameter.
What is it becomes smaller? More dense
300
Spiral, elliptical and irregular
What are the three types of galaxies?
300
The three pieces of evidence that support the big bang theory.
What is Hubble's law, the observation that the farther away a galaxy is, he faster it is moving away from Earth, and cosmic background radiation, which is radiation left over from the big bang and Elemental proportions, where the amount of H and He are the same now as they were when elements originally formed.
400
This allows scientists to see the composition of stars.
What is spectral analysis?
400
This is how the star appears from earth in terms of brightness.
What is apparent brightness?
400
This is how our sun's HR diagram will change as it ages.
What is it will stay in the main sequence, move to become a red giant, and end it's life as a white dwarf (black dwarf when it is out of fuel)?
400
What is the name of our galaxy?
What is the Milky Way.
400
This is what scientist predict for the future of our universe.
What is it will likely expand forever?
500
Relates to wavelengths either compressing or expanding.
What is the Doppler Effect.
500
This is used to measure the distance of a nearby star based on the position of faraway stars.
What is parallax?
500
This is the part of the sun we see from earth.
What is the photosphere?
500
Why do astronomers use scientific notation?
What is to describe sizes and distances in the universe since those numbers are often very large or very small.
500
This is how a stars life cycle supports the big bang.
What is elemental proportion?
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