Spectroscopy and the composition of stars | Physics - Bitesize Space Science

Suitable for teaching 14-16s. Science presenter Jon Chase demonstrates a spectrometer made from a cardboard tube and an old CD to young people in a shopping centre. Subscribe for more Physics clips from BBC Teach on Wednesdays when we have them in: http://bit.ly/BBCSubscribeTeach If you found this video helpful, give it a like. Share it with someone. Add the video to your own teaching playlists. Create an account, subscribe to the channel and create playlists for different age groups, sets and syllabuses. ===================== Jon Chase describes how different elements absorb and emit light of specific wavelengths or colours. He explains how this can be used to identify which elements are present in distant stars by analysing the spectrum of radiation coming from these stars. This clip is from the BBC series Bitesize Space Science; a compilation of short films where Jon Chase conducts a series of fun and engaging demonstrations to introduce the subject of space science. For more clips from Bitesize Space Science: http://bit.ly/TeachBSS For our Light and Distance in Space playlist: http://bit.ly/TeachLDS For our Physics playlist: http://bit.ly/BBCTeachPhysics For Class Clips users, the original reference for the clip was p016y5qy. ===================== Teaching Physics? You could discuss how white light can be split into its spectrum and students could make their own CD spectrometer. The students could investigate the flame colours produced by different elements. A piece of metal could be heated to show how the colour changes with increasing temperature. Relate this to the colours of different stars. These clips will be relevant for teaching Physics at KS4 and GCSE in England, Wales and Northern Ireland and National 4/5 or Higher in Scotland. The topics discussed will support OCR, Edexcel, AQA, WJEC GCSE in England and Wales, CCEA GCSE in Northern Ireland and SQA National 4/5 and Higher in Scotland. ===================== For more clips from other subjects at the BBC Teach YouTube channel: http://www.youtube.com/bbcteach More from BBC Learning Zone: http://www.bbc.co.uk/learningzone More resources from BBC Bitesize: http://www.bbc.co.uk/education ===================== Subscribe to create your own customised playlists, and get notified about our latest clips. As we have them, new videos will be uploaded on the following days: Mondays: Biology, Computer Science, Music, Religious Studies Tuesdays: Drama and Performance, English Language, Maths, Physical Education Wednesdays: Languages, Media Studies, Modern Studies and PSHE, Physics Thursdays: Art and Design, Chemistry, Geography, History Fridays: Business Studies, Design and Technology, English Literature