Place the following images in a sequence to represent the life cycle of a mid-sized star: 5, 7, 10, 11, 13, 20, – CFHT Optical Image of M42 – The Orion Nebula 10 – William Hartmann Illustration of Proto-Planetary System 7 – SOHO (Extreme UV) Image of the Sun 23 – Jeff Bryant Artist Illustration of a Red Giant 11 – Hubble Image of NGC – Hubble Image of NGC the Eight Burst Nebula 20 – U Leicester UK Artist Illustration of a White Dwarf

Place the following images in a sequence to represent the life cycle of a massive star: 4, 5, 9,12, 15, 16, – CFHT Optical Image of M42 – The Orion Nebula 15 – David Malin (AAO) Image of Pleiades Open Cluster 4 – Hubble Image of Red Supergiant Betelgeuse 9 – Hubble Optical Image of Eta Carina 12 – Chandra X-ray Image of Cas A Supernova Remnant 16 – CXC Artist M. Weiss Illustration of a Black Hole 24 – Chandra X-Ray Image of the Crab Pulsar 24 or

These two images sets can be combined as stellar nurseries produce stars of different stellar masses or

Other images can be included also… – Hubble Optical Image of M16 Stellar Nursery 14 – Hubble Optical Image of Proplyd in Orion Nebula 21 – Hubble Optical Image of T-Tauri Star 6 – Hubble Optical Image of V838 Mon 9 – Optical Hubble image of Eta Carinae 19 – Dave Shaver Illustration of Supernova Event 17 – Hubble Optical Image of Cas A Supernova Remnant

Place the following images in a sequence that results in a Type Ia supernova object: 3, 5, 7, 10, 11, 13, 18, 20, 22,

Some of the possible sequences for the evolution of a mid-sized star from formation to final end product A B C D

Some of the possible sequences for the evolution of a massive star from formation to final end products A B C

Some of the possible sequences for the evolution of a mid-sized star to a Type Ia supernova event A B