Place it in the middle of the table, within reach of all students. Fill two medium bowls with comfortably hot water. Place these two bowls on opposite sides of the extra large container. Fill the other two medium bowls with cold water. Place these bowls across from one another on the other sides of the extra large bowl.
Students arrange themselves so they are sitting between a hot and a cold bowl.
Predict what will happen and write it down. What will the lukewarm water feel like after your hands have been in the hot and cold water. When time is up quickly put both hands into the extra large bowl of lukewarm water in the center of the table and feel its temperature. Students write down what each hand felt and whether it was in the hot or cold water and compare to predictions. Share the results with the base group and brainstorm reasons that may explain this occurrence.