A child is shown two identical tall containers, both half-filled with water.
Test Answer
The contents of one container are then poured into a short, wide container. If the child states that both containers still have the same amount, then the child understands the concept of _____. A) classification B) conservation C) centration D) transformation
Answer:
b
Explanation
One container is placed on a tabletop in front of the child, and the other is suspended from a cord just above the child’s head.The child is then asked to predict whether the water in the suspended container will spill out when the container is released.If the child predicts that the water will spill out, they are then asked to explain why.The child’s prediction and explanation are used to assess their understanding of gravity.
The child looks at both containers and observes that they are both half-filled with water. The child wonders aloud why one container is twice as big as the other. After a moment, the child reaches for the larger container and begins to pour the contents of the smaller container into the larger one.
ice cubes in itThe child sees that one container has a single ice cube in it while the other has several ice cubes in it. The child is curious as to why there is a difference and begins to investigate. The child quickly discovers that the container with the single ice cube is much colder than the container with the multiple ice cubes. The child then concludes that the more ice cubes there are in a container, the warmer it will be.
The child concludes that the container with the single ice cube has more water in it because the ice cube is melting and adding water to the container.
for the ice cubes to melt into, and that is why it takes longer for them to melt.The child is correct that the ice cubes take up space in the second container, so there is less water for the ice cubes to melt into. This is why it takes longer for them to melt.
.The child is confident in their answer and can explain their reasoning. This is a good sign that the child is able to think critically and is comfortable with their knowledge on the subject.
Conclusion
After the child dumps out all of the water from one of the containers, the child is asked which container has more water in it.The child would say that the container with more water in it is the one that still has water in it.
