H+R+Diagram

1. Spectral Classification of Stars
== 2. How does the chemical composition of stars determine their classification? ==

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==‍3. HR Diagram Questions (Challenging)==

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==‍4. Types of Stars Activity (Pearson Prentice Hall)==

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==‍5. Hertzsprung Russell Diagram (Pearson Prentice Hall)==

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==‍7. How does the chemical composition of stars determine their classification?==

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==‍9. HR Diagram – Student Guide (For HR Diagram Explorer) (See page 3/9.)==

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==‍10. Star Life Cycle Lessons (The Whole Thing) (Source for numbers 1-3)==

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==‍11. HR Diagram and Interactive Lab Lessons (Only the HR Diagram Parts)==

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==‍12. HR Diagram Presentation (Does not work sometimes on student computers.)==

H R Diagram with Luminosity in Solar Units (Wikipedia)
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=== . . . . . . HR Diagram from Wikipedia=== .