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==Key Stage 3=====Meaning===[[File:TheSun.png|right|300px|thumb|[[The Sun]] is the closest [[star]] to [[Earth]].]]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===: [[The Sun]] is the closest [[star]] to [[Earth]].: [[Star]]s come in many different sizes. Our [[The Sun|Sun]] is a medium sized [[star]] called a [[Main Sequence Star]].: 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 Super Giant]]s.: [[Star]]s are held together in large groups called a [[Galaxy]].: [[The Sun]] is the only [[star]] close enough to affect the [[Earth]]. Most stars are many [[Light Year|light years]] away.: The closest [[star]] to [[The Sun]] is [[Alpha Centauri]] which is 4.23 [[Light Year]]s away.{| class="wikitable"|-|[[File:Stars.png|center|400px]]|-| style="height:20px; width:200px; text-align:center;" |This image shows thousands of [[star]]s.|} ===References=======AQA==== :[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Star, pages 130, 274-5, 277, 290, GCSE Physics; Student Book, Collins, AQA '']:[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Star; life cycle, pages 275, 282-5, GCSE Physics; Student Book, Collins, AQA '']:[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158770&linkCode=as2&tag=nrjc-21&linkId=ec31595e720e1529e49876c3866fff6e ''Star; main sequence, pages 282-3, GCSE Physics; Student Book, Collins, AQA ''] ====Edexcel==== :[https://www.amazon.co.uk/gp/product/1782945733/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945733&linkCode=as2&tag=nrjc-21&linkId=2a2dbec9db6bf5766c0458d908fa0a52 ''Stars (life cycle), page 62, GCSE Physics; The Revision Guide, CGP, Edexcel '']:[https://www.amazon.co.uk/gp/product/1292120223/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120223&linkCode=as2&tag=nrjc-21&linkId=068ecf40278c32406a7f1c6e66751417 ''Stars, page 118, GCSE Physics, Pearson Edexcel '']:[https://www.amazon.co.uk/gp/product/1292120223/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120223&linkCode=as2&tag=nrjc-21&linkId=068ecf40278c32406a7f1c6e66751417 ''Stars; life cycles, pages 122-123, GCSE Physics, Pearson Edexcel ''] ====OCR====:[https://www.amazon.co.uk/gp/product/1782945687/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945687&linkCode=as2&tag=nrjc-21&linkId=9a598e52189317a20311d7a632747bc9 ''Stars, page 99, Gateway GCSE Physics; The Revision Guide, CGP, OCR '']:[https://www.amazon.co.uk/gp/product/0198359837/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359837&linkCode=as2&tag=nrjc-21&linkId=3c4229e8b023b2b60768e7ea2307cc6f ''Stars, pages 238-239, Gateway GCSE Physics, Oxford, OCR ''] ==Beyond the Curriculum=={{#ev:youtube|https://www.youtube.com/watch?v=EFO_bsg1sw8}}