What are stars? - Lesson 9
OUTCOME
By the end of the lesson you will be able to describe and explain the life cycle of a star
A stars life starts in a nebula, continues through fusion and ends in one of several ways depending on its mass.
LEARNING TASKS
Explain
1. What is the relationship between star mass and stellar lifespan?
2. Can you explain why?
3. Explain why a star expands when it runs out of hydrogen?
4. Why does the surface temperature drop?
5. Describe what ends may await a star and why one might happen rather than another.
Evaluate
Try Questions 30 - 32
Make sure you are up to date with your forum contributions. Remember you should have asked two questions and answered two questions by the end of the fortnight