Download Star Life Cycle Web Quest

------Name _______________________________________________________________ Period______________
21
Star Life Cycle
Read the information at http://www.seasky.org/celestial-objects/stars.html and answer the questions. Questions are
NOT IN ORDER!
1: Use the information under the headings 'the circle of life' and 'life cycle of a star' to draw and label the life of stars.
2:What will happen to our sun?
3: Define each of the different star types in a stars life.
Main Sequence Stars - ______________________________________________________________________________
Red Giants - _______________________________________________________________________________________
White Dwarfs - _____________________________________________________________________________________
Brown Dwarfs – ____________________________________________________________________________________
Variable Stars – _____________________________________________________________________________________
Binary Stars – ______________________________________________________________________________________
4: Does size impact the length of a stars life? HOW?
5: What happens when a star dies? (multiple steps!)
6: What is nuclear fusion?
7: What does nuclear fusion provide the star with?
8: What is the simple chemical equation for nuclear fusion?
9: When stars are no longer able to perform the nuclear reaction of fusion, what is the final element produced by stars?
10: Our solar system formed from a ____________________________________________________generation nebula.
11. What two pieces of information classify stars?
12. Color and label the Spectral Class for stars. Label temperature (high to low), color, and Class (letter).
⃝⃝⃝⃝⃝⃝⃝
Temperature
(High or low)
Class
13. Magnitudes of brightness increase and decrease by a factor of 10. That means that a magnitude 2 is
(number)________________ times ( brighter / dimmer ) than a magnitude 1.
14. Stars with a magnitude of 8 are:
15. The brightest star in the night sky is___________________________________. It has a magnitude of ____________.