Star Life Cycle - Earth Science Worksheet printable pdf download

Star Life Cycle - Earth Science Worksheet

______________________________________

Name

Stars and Galaxies

Earth Science

Internet Investigation

Star Life Cycle

( )

Proceed through the web pages at this site, answering the following questions as you go. The symbol ►

tells you that you should be on a new page.

1. What human stages of life correspond to the following stages in the life of a star?

Protostar _____________________________

Fusion ignition to Main Sequence _________________________________

Red Giant/Supergiant _______________________________

White Dwarf/Black Hole _____________________________

2. At your age, if you were a star, what stage would you be in?______________________________

3. What do we call the birthplace of stars? __________________________What is it made

of?__________________________________________________

4. How long ago was our sun formed? _____________________________

►Protostar

5. What causes the “clumps” in the nebula to form? _________________________ What do these

clumps become? ___________________________

6. What is equilibrium in a star? ______________________________________________________

7. When does equilibrium occur in a protostar? ____________________________________________

8. During star formation does gravity change? ______

9. During star formation does pressure change? ________ Name two things that cause it to

change.___________________________________________________________

10. What are the two objects that a protostar could become?

____________________________________________________________________________

►Stars

11. What is a star?_________________________________________________________________

12. What are the fuels that stars use to create energy through fusion

During the majority of their lives?_____________________________

Toward the end of their lives?_____________________________

Toward the end of their lives if they are a more massive star? _______________________________

13. In what phase do the majority of stars live? _____________________________________________

Star Life Cycle - Earth Science Worksheet