You are visiting your sister, who has 4-year-old twins. They ask if they can have some milk and you are pouring it for them. One glass you choose is tall and thin and the other is short and wide. After you pour the milk, your niece is very unhappy because you gave 'more' milk to your nephew. You actually gave each of them the same amount, but your niece and nephew lack the mental ability to ____.

Question

Quizplus · Accepted Answer

Conservation is the ability to understand that the amount of something remains the same even if its appearance changes. In this scenario, the twins lack the ability to conserve, leading to the belief that the glass with the wider diameter containing the same amount of milk is less than the tall and thin glass.

You Are Visiting Your Sister, Who Has 4-Year-Old Twins