The Astronomer Who Originally Classified Galaxies into S, E, and Irr

question 114

Multiple Choice

The astronomer who originally classified galaxies into S, E, and Irr was

• A) William Herschel.
• B) Edwin Hubble.
• C) Henrietta Leavitt.
• D) Harlow Shapley.
• E) Carl Sagan.

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Definitions:

Overextension

A linguistic error, common in early language development, in which a child applies a word in a broader context than is appropriate.

Underextension

A cognitive error observed in language development, where a child applies a word too narrowly, using it for one object instead of all objects of that category.

Fast Mapping

The process by which children are able to learn the meaning of new words quickly by making logical assumptions after a minimal exposure.

Fast Mapping

The process by which children rapidly learn a new word after a brief encounter.