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P3 4.2Stars and space 20 April 2023

Twinkle, twinkle little star how I wonder what you are

Describe what you think a star is and how it powers itself.

Brian Cox introduces today’s lesson: hereAnd then describes how stars form and die: here

Objective

Be able to describe the life cycle of massive stars

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OUTCOMES

• ALL MUST KNOW that • A star goes through a life cycle (limited to the

life cycle of stars of similar size to the Sun and stars much larger than the Sun).

• MOST: Fusion processes in stars produce all naturally occurring elements.

• SOME: These elements may be distributed throughout the Universe by the explosion of a star (supernova) at the end of its life.

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Image from: www.star.ucl.ac.uk/groups/hotstar UCL Hot Star Research Group

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Make a revision poster of the lifecycle of a massive star Use pages 270 and 271 from AQA GCSE Collins books

Criteria: A Diagram showing the lives of medium and large starsA description of how fusion powers medium and large starsAn explanation of how heavy elements are formed and distributed about the universe.Useful revision tool

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Plenary

• Finish off a new verse for the nursery rhyme:

• Twinkle, twinkle medium (or large) sized star now I understand what you are…

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P3 4.2Tell me two things...(for each)

• that you have done well this session (www)

• that you could do better next time (ebi)

• that you know now that you didn’t know at the start

• that you would like to know more about