Beyond Our Solar System - Stellar Evolution Worksheet Template
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#7
Chapter 25
Beyond Our Solar System
Section 25.2 Stellar Evolution
This section describes the evolution of stars from birth to burnout and death.
It also discusses types of stellar remnants.
Reading Strategy
As you read, complete the flowchart to show how the sun evolves.
Expand the chart to show the evolution of low-mass and high-mass
stars. For more information on this Reading Strategy, see the Reading
and Study Skills in the Skills and Reference Handbook at the end of
your textbook.
Evolution of Sun
a.
b.
Star Birth
What is the process by which a star is born?
1.
2. List in order the labeled stages shown on the figure that a medium-
mass star goes through during its “life.” (Hint: it may be helpful to
draw arrows on the figure from stage to stage.)
a.
e.
b.
f.
c.
g.
d.
h.
GIANT
STAGE
–5
VARIABLE
STAGE
0
Protostar
Dust and
gases
+5
Main-sequence star
PLANETARY
WHITE DWARF
+10
NEBULA STAGE
STAGE
To black dwarf stage
+15
25,000
10,000
7000
5000
3000
Surface temperature (K)
Earth Science Guided Reading and Study Workbook
183
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