Examlex
The Hertzsprung-Russell diagram is a graph of ________ for stars.
Mirror
A reflective surface, typically of glass coated with a metal amalgam, that reflects a clear image.
Concrete-operational
A stage in Piaget's theory of cognitive development during which children gain the ability to think logically about concrete events.
Abstractions
Simplified representations of complex concepts or real scenarios that highlight their essential characteristics while omitting the irrelevant details.
Preconventional
A stage of moral development where an individual's sense of morality is externally controlled, based primarily on the consequences of actions.
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