Multiple choice Which of the following is a transfer of chemical energy to thermal energy? A hairdryer is turned on to dry someone's hair. An atom is split to increase the temperature of water A boy eats an apple, which regulates his body temperature. An ice cube is placed in warm soup and melts. Reveal answer Fill a bubble to check yourself C Correct answer Explanation When a boy eats an apple, his body metabolizes the food, which is a chemical process that releases stored chemical energy. This energy is then converted into thermal energy to regulate and maintain his body temperature.