Discuss " what is nuclear fusion". Define how fusion is the process by which two light nuclei combine to form a single heavier one, while releasing massive amounts of energy. Discuss how fusion takes place in a state of matter called plasma. Explain how this reaction takes place in the sun, and requires high temperature and gravity within a small space. Extreme pressure is a requirement. Discuss deuterium and tritium as the nuclei which fuse. Present a nuclear fusion equation. Discuss differences between fission and fusion and their operational conditions. Introduce and determine the mass difference which occurs when fusion happens, and the amount of energy given off.