ASTR.SCI.14.B | Texas Essential Knowledge and Skills (TEKS)

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spiral galaxieselliptical galaxiesirregular galaxiesdwarf galaxiesactive galaxies

compare (spiral, elliptical, irregular, dwarf, and active galaxies) #dok2
classify (different types of galaxies based on their characteristics) #dok2
analyze (the distinguishing features of various galaxy types) #dok3
explain (how galaxy types differ in structure, size, and composition) #dok2
summarize (the significance of different galaxy types in understanding the universe) #dok2

I can identify the major types of galaxies in the universe. #dok1
I can describe the basic characteristics of spiral, elliptical, irregular, dwarf, and active galaxies. #dok1
I can compare the features of spiral, elliptical, irregular, dwarf, and active galaxies. #dok2
I can classify galaxies based on visual or described characteristics. #dok2
I can explain the differences in structure and properties among the main types of galaxies. #dok2
I can analyze images or data to determine the type of galaxy represented. #dok3
I can evaluate why having multiple galaxy types is important to our understanding of the universe. #dok3

Galaxies come in diverse forms that differ in appearance, structure, and other properties, revealing key information about their formation and evolution.
Comparing the various types of galaxies helps astronomers understand the processes that shape and influence the universe at large scales.

What are the distinguishing characteristics of spiral, elliptical, irregular, dwarf, and active galaxies?
How can astronomers classify galaxies based on observations and data?
Why do galaxies exist in such different forms, and what does this imply about the universe?
How do the structures and properties of different galaxy types inform our understanding of cosmic evolution?
What methods and evidence are used to compare and contrast types of galaxies?