Unit 4 Chapter 5 How Earth’s Rocks were Formed
earth formed ~4.6 billion years ago. planets are: MVEMJSUNP. sun is powered by fusion and contains H and He in a hot gas (plasma) surface of sun shows flares (prominences), sunspots. Sun gives off solar wind (stream of high energy charged particles) that interact with earth’s magnetic field to create aurora (northern and southern lights) ................
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