The best question to ask is : How do kaleidoscopes work
The best question to ask before reading a passage is the " How " question because this question will help you focus on the major points explained in the passage. The title of a descriptive/informative passage start with the "HOW" keyword.
Hence we can conclude that The best question is ask is : How do kaleidoscopes work before reading the passage.
Learn more about the best question to ask : https://brainly.com/question/25257437
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The missing part of the question
Vector: colorful checkered circle frame background When did people start making kaleidoscopes? How do kaleidoscopes work? Are kaleidoscopes still popular? Who invented kaleidoscopes?