Guiding Questions Worksheet – Life & Death of a Star Video
Guiding Questions Worksheet – Life & Death of a Star Video
Guiding Questions Worksheet – Life & Death of a Star Video
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Name ______________________________________ Period _____ Date _______________________<br />
<strong>Guiding</strong> <strong>Questions</strong> <strong>Worksheet</strong> <strong>–</strong> <strong>Life</strong> & <strong>Death</strong> <strong>of</strong> a <strong>Star</strong> <strong>Video</strong><br />
1. Where are stars born?<br />
2. What pull gas and dust together in a nebula to form a star?<br />
3. How long does it take for a protostar to form? How hot is the core <strong>of</strong> a protostar?<br />
4. How much more time does it take to make a true star with fusion at its core? How hot is the<br />
core?<br />
5. What force counteracts gravity to stabilize the size <strong>of</strong> a star?<br />
6. What is a main sequence star?<br />
7. How is star color related to a star’s temperature? What color is coolest? What color is hottest?<br />
8. Which stars live the longest and shortest?<br />
9. How long will our star (the Sun) live in total?<br />
10. How long can a very small red dwarf star live?
11. How long can a very large star (20 times the Sun’s mass) live?<br />
12. How hot does a star’s core need to get to fuse helium into carbon?<br />
13. What happens to a star the size <strong>of</strong> our Sun when it uses up its hydrogen? How much life does it<br />
have left at this point?<br />
14. What is the last stage <strong>of</strong> life for a Sun-sized star after it becomes a giant?<br />
15. If a white dwarf is part <strong>of</strong> a multi-star system, what can happen to the white dwarf?<br />
16. For large stars, ten or more times the mass <strong>of</strong> the Sun, how does the star’s life end?<br />
17. How did past supernovas make the heaviest elements found on Earth?<br />
18. What two possible results can come from a supernova?
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