Why does the temperature stop rising while ice melts into water? A. Because no more heat is being added to the system.
B. The temperature does not stop rising.
C. The electrons are increasing in energy levels.
D. The energy is being absorbed to separate the particles

Sandy is building a small toy car. he wants to use a balloon to power the toy car. he fills a balloon with air and then attaches a straw to the balloon. he tapes the balloon-straw combination to the car and then releases the end of the balloon. the toy moves forward as the air from the balloon comes out the back of the straw. what can sandy do to make the toy car move faster? a) use less air in the balloon. b) blow up the balloon more. c) use a longer straw. d) use larger tires.