alleryStart learning →Understanding that mass, volume and number stay the same when shape changes is called:
ACalled conservation
BObject permanence
CCalled attachment
DCalled temperament
Answer & Solution
Correct answer: A. Called conservation
1. A tall thin glass and a short wide one can hold the same water.
2. In the concrete operational stage, children master the concept of conservation.
3. Even if something changes shape, its mass, volume, and number stay the same.
4. Object permanence is an earlier achievement about hidden objects.
_Source: OpenStax Psychology 2e (CC BY 4.0), Ch 9 'Lifespan Development', sections 9.1-9.4_
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