1. Stars
Expectations: D2.3, D2.5,

2. How do Stars Differ? Size Mass Brightness (Luminosity) Composition
Temperature
Colour

3. Different Stars

4. More Massive Stars

5. Life Cycle of Stars
Nebula: birthplace of a star, made of gas and dust

6. Nebula

7. The life of a star is determined by its mass
The life of a star is determined by its mass. The more massive the star, the faster its rate of nuclear fusion and therefore a shorter life.

8. Hertzsprung-Russell Diagram

9. Classwork Worksheet Read p. 370-373 Read p. 375-382
Answer page 373 #1-3, 5, 7-9
Read p
Answer page 382 #3-4, 6, 7, 9