Download Chapter 18 Study Guide

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Earth Science
Study Guide: Chapter 18- Stars
Complete each question or statement with as much information as we covered in class.
1. What is a star?
2. Describe the process of star formation in 5 steps.
3. How does a star produce energy?
4. What determines how long a star will live?
5. Describe what happens in large stars. Small stars?
6. How will really massive stars end their lives?
7. Spectrum
8. What does the spectrum reveal about stars?
9. Describe how color and temperature are related.
10. Color of hot stars? Color of cool stars?
11. Magnitude
12. What are 3 factors that determine how bright a star will be?
13. Apparent magnitude
14. Absolute magnitude
15. Compare the Sun’s apparent magnitude to Pluto’s apparent magnitude.
16. What does the H-R diagram show?
17. Below sketch out the H-R diagram plotting the main stars and labeling the main sequence.
18. What is significant about the main sequence?
19. Classify the following stars by describing its brightness and temperature:
White dwarf
Blue stars
Sun
Red giants
Red dwarfs
20. What are the two main parts of the Sun?
21. Describe the following layers of the Sun:
Corona
Chromosphere
Photosphere
Convection zone
Radiative zone
Core
22. What are sunspots?
23. Prominences
24. Solar flares
25. How long does it take the light particles to reach the surface of the Earth?
26. Constellations
27. How many constellations do astronomers recognize?
28. Galaxy
29. How do we classify galaxies?
30. Describe the following types of galaxies based on star formation and shape:
Elliptical
Spiral
Irregular
31. What type of galaxy is our Milky Way?
Test- Friday