A child looks at identical glasses filled with the same amount of liquid to demonstrate Piaget's Liquid Conservation experiment.
Contributor:Marmaduke St. John / Alamy Stock Photo
File size:36.4 MB (1.1 MB Compressed download)
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Dimensions:4367 x 2911 px | 37 x 24.6 cm | 14.6 x 9.7 inches | 300dpi
Date taken:13 August 2012
This image could have imperfections as it’s either historical or reportage.
In developmental psychologist Jean Piaget's Liquid Conservation experiment, a child is shown two identical glasses filled with the same amount of liquid plus an empty taller glass. Conservation refers to a logical thinking ability in children aged 7-12.