Mass controls a star's life story
Mass controls a star's life story

A star is a huge sphere of hot gas that releases energy because nuclear fusion happens in its core. Stars are born, spend a long time in a stable stage, and then change when their fuel supply changes.
Step-by-step lessons covering Edexcel GCSE Physics Stellar evolution and observing the Universe for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Master the required practical work and core equations early, since both papers can draw on content and maths skills from across the whole specification.