Download Name: Period: _____ Stars Interactives and Activities

Name: __________________________________ Period: _____
Stars Interactives and Activities
Star Formation
Go to the following website: tinyurl.com/starformation
1. What is the interstellar medium and what is it made of?
2. What are interstellar clouds?
3. How do the cooler clouds appear in the night sky?
4. At what wavelength does the protostar emit?
The Solar Core
Go to the following website: tinyurl.com/SolarCore
1. What two forces are in balance in our Sun?
2. What is the primary gas in the Sun?
3. What do main sequence stars fuse, and what do they make?
4. What kind of radiation is produced in the proton-proton chain?
The HR Diagram
Go to the following website: tinyurl.com/4uolwwd
1. What properties of stars do need to look for patterns in?
2. What is the most useful diagram in astronomy?
3. How is temperature plotted on the x-axis?
Stars
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Name: __________________________________ Period: _____
Stars Interactives and Activities
4. What are the two ways the x-axis can be labeled?
5. What do we plot on the y-axis?
6. What is luminosity?
7. What do we need to calculate a star’s radius?
8. Moving up and to the right on the H-R diagram takes us to what kind of stars?
9. Where do 90% of the stars in the sky fall?
10. Closer stars are typically cool, low-luminosity stars. What does this mean?
11. How does stellar mass increase on the H-R diagram?
12. What have astronomer’s observed around the star Vega?
13. What kind of star is Betelgeuse?
14. Sirius B is a white dwarf star. What does this mean about its nuclear fusion?
15. What will the most massive stars become?
H-R Diagram Interactive Lab
Go to the following website: tinyurl.com/HRInteractive
See how good you are at reading the H-R Diagram
Analyzing Stars with the H-R Diagram
Go to the following website: tinyurl.com/HRApplications
Answer the questions about stars on the H-R Diagram.
Stars
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Name: __________________________________ Period: _____
Stars Interactives and Activities
Star Lives on the H-R Diagram
Go to the following website: tinyurl.com/4t7rp6q
Luminosity
1. Do stars really zig-zag through space?
2. Plot the movements of a star through the H-R Diagram as it goes through these
phases:
a. Nebula
b. Protostar
c. Main Sequence Star
d. Red Giant
e. Variable Stage
f. Planetary Nebula
g. White Dwarf
Surface Temperature (K)
Star Lives on the H-R Diagram
Go to the following website: tinyurl.com/HRQuestions
Answer the questions about the H-R Diagram.
Stars
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