2. Place the following images in a sequence to represent the life cycle of a mid-sized star: 5, 7, 10, 11, 13, 20, 23 510723111320 5 – 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 2440 13 – Hubble Image of NGC 3132 - the Eight Burst Nebula 20 – U Leicester UK Artist Illustration of a White Dwarf

3. Place the following images in a sequence to represent the life cycle of a massive star: 4, 5, 9,12, 15, 16, 24 5154912 16 5 – 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

4. These two images sets can be combined as stellar nurseries produce stars of different stellar masses 5 107111320 15 23 94 16 24 12 or

5. Other images can be included also… 8102111132 9 7 17 14 81541219 8 – 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 6 16 24 5

6. Place the following images in a sequence that results in a Type Ia supernova object: 3, 5, 7, 10, 11, 13, 18, 20, 22, 23 510723111320 18322

7. Some of the possible sequences for the evolution of a mid-sized star from formation to final end product 5107231320 5 108723132 A B C D 58 8147 7 6 623 13 2 10 1 20 21 11

8. Some of the possible sequences for the evolution of a massive star from formation to final end products 51020 19 1081415 A B C 524 814 4 2415199 1720 219 16 154 1920

9. Some of the possible sequences for the evolution of a mid-sized star to a Type Ia supernova event 20510872313 A B 5 8 3 147 3 62313 18 222 21 11