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Galaxy Review. Astronomers estimate that the universe contains 100 galaxies 100 million galaxies 100 billion galaxies 100 trillion galaxies. 100 billion galaxies. Clusters of galaxies form larger groups called Supernovas Superclusters Constellations Supergiants. Superclusters.
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Astronomers estimate that the universe contains • 100 galaxies • 100 million galaxies • 100 billion galaxies • 100 trillion galaxies
Clusters of galaxies form larger groups called • Supernovas • Superclusters • Constellations • Supergiants
Quasars are thought to be the centers of • Distant nebulas • Distant constellations • Distant galaxies • Distant clusters
Quasars were named for their • Absorption of radiation • Generation of radiation • Resemblance to galaxies • Resemblance to stars
Astronomers group galaxies based on their • Shape • Size • Colors • ages
Quasars are among the strongest sources of ____________ in the universe. • Planets • Sound waves • Radio waves • microwaves
Our galaxy is classified as a • Spiral • Elliptical • Irregular • peculiar
The universe is made up of mostly • Dark matter • Dark energy • Stars • Empty space
The number of universes known to exist is • One • One hundred • One million • One billion
______________ block the view of the center of the Milky Way. • Stars and moons • Blackholes • Gas and dust • Planets and stars
The name of the galaxy cluster that the Milky Way belongs to is the • Virgo Cluster • Local Group • Inner Group • Virgo Super Cluster
Our solar system is located in the _____ Arm the Milky Way Galaxy. • Centarus • Perseus • Sagittarius • Orion
Which answer best describes the disk of a galaxy? • Mostly older stars, not much gas and dust. • Mostly older stars, lots of gas and dust. • Mostly younger stars, not much gas and dust. • Mostly younger stars, lots of gas and dust.
Which answer best describes the bulge of a galaxy? • Made up of old stars in galactic clusters. • Made up of old stars in globular clusters. • Made up of young stars in galactic clusters. • Made up of young stars in globular clusters.
