Physical Science Module 16 Notes

Stars and the Universe Sun lights our planet, is just the closest star to us Special Star sun exists by itself as an individual star Multiple Star systems - the stars orbit each other Size and Mass Essentially spherical with a diameter of more than a hundred times the earth What is it made of? a big ball of hydrogen and helium gas can be split into four distinct sections (a photosphere, convection zone, radioactive zone, and core)