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Name
Date
Galaxies And the Universe
Section 31.2 Other Galaxies in the Universe
Main Idea
Details
Predict Read the title of Section 2. List three topics that might be
discussed in this section.
1.
2.
3.
Review
Vocabulary
Use your text to define the following term.
mass
New
Vocabulary
Read the definitions below. Then write the term for each one in
the left column.
cluster of galaxies
formulaic method of representing the expansion of the universe
giant galaxies that emit more radio waves than waves of
visible light
core of a galaxy where a highly energized object is located
star-like objects with emission lines in their spectra
Academic
Vocabulary
Define the following term.
positive
Galaxies and the Universe
375