Sample Response: The Sun produces energy by the process of nuclear fusion. Nuclear fusion occurs when lighter nuclei combine to produce a larger, heavier nucleus. In the process, energy is released. Nuclear fusion requires very high temperatures and pressures. Nuclear fusion occurs in the core of the Sun when hydrogen atoms combine to form helium atoms. Which of the following did you include in your answer? Check all that apply.

The Sun produces energy by the process of nuclear fusion.
Nuclear fusion occurs when lighter nuclei combine to produce a larger, heavier nucleus.
Energy is released during nuclear fusion.
Nuclear fusion requires very high temperatures and pressures.
Nuclear fusion occurs in the core of the Sun when hydrogen atoms combine to form helium atoms.