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Matter per unit volume defines
Egocentrism
The cognitive inability to understand that other people's views and perspectives are different from one's own.
Perspective
A viewpoint or angle from which something is considered or evaluated.
Piaget's Theory
A theory of cognitive development that outlines how children's abilities to think and reason progress through four distinct stages as they grow.
Conservation Task
A concept in developmental psychology that assesses a child’s ability to recognize that quantities remain the same despite changes in their shape or arrangement.
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