Rochelle has a glass of kool-aid. she pours her kool-aid into a toy teacup, and then she pours the kool-aid from the teacup into a beer stein. she then pours it from the beer stein back into the original glass. she knows the amount of kool-aid has not substantially changed. what does this exemplify?

Liquid conservation

Explanation:

Jean Piaget proposed, as part of his cognitive development theory, that around ages 7 to 11, children develop the idea of "conservation"

This concept refers to the thinking ability that allows a person to know that a certain quantity of liquid or mass will remain the same despite being changed of container, shape, or apparent size.

In this example, Rochelle has a glass of Kool-Aid, she pours it into a different container (a teacup) and then into a beer stein and then into the original glass. Younger children would think  that the teacup has less liquid (since it's smaller) and that a significant amount of liquid is lost while doing all this changes from recipient to recipient.

However, Rochelle knows that this quantity of Kool-Aid remained the same despite being changed of container, thus, this is an example of liquid conservation.

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