Name: _______________________________________________ Period: ___________
Virtual Lab: Life Cycles of Star & Interactive H-R Diagram (Lab)
Directions: With each link provided below, make sure you read all directions and questions carefully, complete each tutorial section, and provide answers on all blanks provided. This will count as a Technology / Lab Activity. Turn in to tray when finished.
Part 1: Analyzing Stars with the H-R Diagram – Interactive Tutorial; Click on the link below, and read carefully and complete your selections / choices as you advance through this tutorial program.
http://aspire.cosmic-ray.org/labs/star_life/support/HR_applications.swf
Results from the HR Diagram Applications activity: If you choose to type your answers directly into the computer, you may choose the print option for your responses to the 4 questions (see below) and then staple it to this sheet to be turned in with your other responses to be graded.
* For each conclusion below, circle whether you think the statement is TRUE or FALSE & briefly explain WHY.
1) The majority of a star’s life cycle is spent as a main sequence star.
TRUE or FALSE
Why or Why not?
2) The surface temperature and the brightness of a star changes drastically over the course of a star’s life.
TRUE or FALSE
Why or Why not?
3) A star with a large mass will radiate more energy into space and appear hotter and brighter than a star with a smaller mass.
TRUE or FALSE
Why or Why not?
4) Smaller mass stars have a greater luminosity (brightness) than larger mass stars.
TRUE or FALSE
Why or Why not?
Part 2: Life Cycle of a Star Animation: View this link and click on the forward (>>) & backward (<<) buttons to view the stages in the life of a star!
http://aspire.cosmic-ray.org/labs/star_life/support/HR_animated.swf
What did you find most interesting or ‘instructive’ about the information in this animation?
_______________________________________________________________________________________
_______________________________________________________________________________________
Part 3: Life Cycles of the Stars & the H-R Diagram: Click on the link below, and work your way through this tutorial website about the H-R Diagram and the characteristics of stars as they ‘age’. Write down the letter(s) of your correct answers to the 14 questions asked on this website tutorial about the H-R Diagram.
http://aspire.cosmic-ray.org/labs/star_life/support/HR_static.swf
1) _____ 4) _____ 7) _____ 10) _____ 13) _____
2) _____ 5) _____ 8) _____ 11) _____ 14) _____
3) _____ 6) _____ 9) _____ 12) _____
Part 4: NASA Quiz on Stars: Click on the link below, and answer each of the 5 questions about Stars. Write down the letter(s) of your correct answers to these 5 questions.
http://imagine.gsfc.nasa.gov/docs/science/quiz_l2/stars_quiz.html
1) _____
2) _____
3) _____
4) _____
5) _____
Part 5: How good are you at reading the H-R diagram?? Click on the link below, choose from the options given on the H-R diagram and then check yourself when done with your selections.
http://aspire.cosmic-ray.org/labs/star_life/support/HR_init_real.html
How many of the 10 options for the 5 stars did you get CORRECT?? _____________ out of 10
Part 6: How does Star MASS affect that star’s DEATH?? Click on the link below and try each of the 4 possible scenarios of Star Mass and each star’s ‘Death’. Write below what is the FINAL STATE for each of the 4 Star Masses.
http://aspire.cosmic-ray.org/labs/star_life/end_stars_real.html
Small: _____________________________________________________
Low: _____________________________________________________
Medium: _____________________________________________________
Massive: _____________________________________________________