Changes

==Key Stage 3=====Meaning===A [[star]] is a very large ball of [[gas]] in [[space]] that is glowing in [[Visible Light|visible light]] because it is so hot. ===About Stars===: [[Star]]s come in many different sizes. Our [[The Sun|Sun]] is a medium sizes [[star]] called a [[Yellow Dwarf]].: Most [[star]]s in the [[Universe]] are smaller than [[The Sun]] and are often [[White Dwarf]]s. However, there are many [[star]]s that are much larger than [[The Sun]] and are often [[Red Giant]]s or [[Red Supergiant]]s.: [[Star]]s are held together in large groups called a [[Galaxy]].