Name:
Pd.
Date:
The Universe
Astronomy
– The Secrets
Headerof the Sun
Follow along with the video and answer the questions. The questions are in order of their appearance in the show.
http://www.history.com/shows/the-universe/videos/the-universe-secrets-of-the-sun#the-universe-secrets-of-the-sun
1. What 2 elements make up most of the Sun’s mass?
2. What type of star is the Sun?
3. If the Sun were made of wood and burned, how long would it take to burn out?
4. Name and describe the state of matter of the sun.
5. What is the process by which the Sun produces energy (heat/light)?
6. What are the particles called that bring heat and light from the center of the Sun to Earth?
7. How long does it take light that leaves the Sun to reach Earth?
8. What drives all outbursts of explosions on the Sun?
9. What evidence do scientists see on the Sun that proves the existence of many magnetic field lines?
10. What results when a high energy flare shoots enough material back towards the Sun’s surface?
11. What is a CME?
12. What happened to Mars’ atmosphere?
13. What is the trigger for most solar magnetic storms?
14. What evidence do we see in the sky when the solar magnetic storms break through our magnetic shield?
15. How long did it take for the fastest coronal mass ejection ever recorded (in 1859) to get to Earth?
16. What technology did it affect?
17. How long is the Sun’s sunspot cycle?
18. What force causes the superheating of the corona?
19. How often does a solar eclipse occur on the Earth?
20. If you stayed in one place on Earth, how often would a solar eclipse occur?
21. When will the Sun die?
22. What will the Sun expand to?
23. What will happen to Earth’s orbit?
24. About what size will the Sun be once it has cast off its outer shell?
Dottie Edwards, Strasburg High School, Strasburg, VA, Shenandoah County Public Schools
The Sun
◆ Understanding Main
Ideas
Label the diagram of the sun below.
4.
1.
2.
5.
3.
6.
◆ Building Vocabulary
Match each term with its description by writing the letter of the correct description in the right column on
the line beside the term in the left column.
© Prentice-Hall, Inc.
____ 7. solar flare
_____ 8. core
____ 9. chromosphere
a. the layer of the sun’s atmosphere
that makes light
b. the layer of the sun’s atmosphere
that has a reddish glow
c. the layer of the sun’s atmosphere
____ 10. sunspot
that looks like a halo during an
eclipse
____ 11. corona
d. areas of gas on the sun that are
____ 12. nuclear fusion
cooler than the gases around
them
____ 13. photosphere
e. reddish loops of gas that link parts
____ 14. solar wind
f. explosions that occur when the loops
____ 15. prominence
of sunspot regions
in sunspot regions suddenly connect
g. a stream of particles produced by
the corona
16. Illustrate and label the two elements
that make up the sun.
h. the center of the sun
i. the joining of hydrogen atoms to
form helium