12 Which of the following best describes the energy change that occurs when a
stretched rubber band is
suddenly released?
(1) kinetic to potential
(2) mechanical to potential
(3) potential to kinetic
(4) kinetic to mechanical

Growth of chest hair, deepening of the voice, and muscle growth are secondary sex characteristics. which most likely affects the development of these traits? testes ovaries prostate gland vulva

Ascientist wants to determine the effect of a new type of gasoline. he fillsone car with normal gasoline and another identical car with the new gasoline. which is the control group? a. the new type of gasolineb. the car with the normal gasolinec. the car with the new gasolinethe amount of gasoline usedd. the amount of gasoline used

Identify two examples of chemical reactions that you have encountered during the last week. identify an exothermic and endothermic reaction. explain.