Baldwin - Galaxies
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| How do we measure distance in space? | Light years, the distance light travels in one year.
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| What are the three kinds of galaxies? | spiral, elliptical and irregular
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| What are the characteristics of a spiral galaxy? | a center bulge and spiral arms; it contains middle aged stars
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| What are the characteristics of an elliptical galaxy? | a bright center, little to no gas or dust; it contains old stars
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| What are the characteristics of irregular galaxies? | they have undetermined shapes and young stars
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| What do galaxies contain? | gas clouds, dust particles, stars, star clusters, dark matter, Black Holes
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| What kind of galaxy is the Milky Way? | barred spiral
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| Where is the Milky Way located? | in The Local Group near Andromeda
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| Where is Earth located within the Milky Way? | Orion Arm on the outer edge of the galaxy
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| Why do scientists believe that Black Holes may be at the center of all galaxies? | Because the strong gravitational pull of a Black Hole would keep the contents of the galaxy in place much like our sun keeps solar system in place
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| Why was Edwin Hubble important to the study of galaxies and outer space? | He designed the Hubble telescope which allowed scientists to see more than before; he also classified the different kinds of galaxies.
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Or sort by any of the columns using the down arrow next to any column heading.
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Created by:
masonteach
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