Name: ____________________________________________. Date: ____________________
Stars & The Sun Study Guide
Part 1: Examining Stars – Critical Vocabulary
Term
Star
Definition/Notes
Light Year
Luminosity
Magnitude
Absolute magnitude:
Apparent magnitude:
Nebula
Main Sequence
Star
Super Nova
White Dwarf
Black Dwarf
Neutron Star
Concept Questions:
1. Stars are mostly made up of _____________________ and ___________________.
2. How is a light year different from the Astronomical unit (AU) that we learned about in
our previous unit on planets? ______________________________________________
_______________________________________________________________________
_______________________________________________________________________
3. What is a Hertzsprung – Russell Diagram? ____________________________________
_______________________________________________________________________
_______________________________________________________________________
4. What two factors does the HR diagram examine? ______________________________
_______________________________________________________________________
_______________________________________________________________________
5. According to this graph, which color of star is the coldest and brightest star?
_______________________________________________________________________
6. According to this graph, which color of star is the coldest and dimmest?
_______________________________________________________________________
For questions 7 – 9 on the next page, use the following Word Bank:
Main Sequence
Giants & Super Giants
White Dwarfs
. ___________________
. ___________________
9. ___________________
and _________________
7. ___________________
8. ___________________
.
_______
_______
_____
. ___________________
10. Outline the life cycle of a Sun like star (a star that is roughly the size of our sun)
. ___________________
11. Outline the life cycle of a Large star (larger than our sun, but smaller than the super giants
12. Outline the life cycle of a Very large star (the super giants)
Part II: Examining the Sun
1. What are the 6 main parts of the sun?
a. _____________________________________________
b. _____________________________________________
c. _____________________________________________
d. _____________________________________________
e. _____________________________________________
f. _____________________________________________
2. What is a fusion reaction? _________________________________________________
__________________________________________________________________________
3. Of the layers/parts of the sun in question one, highlight the ones that belong to the
category “Parts of the Atmosphere” yellow and the ones that belong to the category
“Layers of the sun’s interior” pink.
4. What is a solar eclipse? ___________________________________________________
________________________________________________________________________
Sun Vocabulary
Term
Corona
Chromosphere
Photosphere
Convective Zone
Radiative Zone
The Core
Definition/Notes
Name: --------
Date: ----------
SCIENCE WORKSHEET: LABEL PARTS OF THE SUN
1
Word Bank: Which part?
Radiative zone
Corona
Convective zone Photosphere
Chromosphere Core
5
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1.
2.
6
3.
4.
5.
6.