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.
#
1
Question
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?
What is the process by which the Sun produces
energy (heat/light)?
What are the particles called that bring heat and light
from the center of the Sun to Earth?
How long does it take light that leaves the Sun to
reach Earth?
What drives all outbursts of explosions on the Sun?
4
5
6
7
8
What evidence do scientists see on the Sun that
proves the existence of many magnetic field lines?
9
10
What results when a high energy flare shoots enough
material back towards the Sun’s surface?
What is a CME?
11
What happened to Mars’ atmosphere?
12
What is the trigger for most solar magnetic storms?
13
What evidence do we see in the sky when the solar
magnetic storms break through our magnetic shield?
How long did it take for the fastest coronal mass
ejection ever recorded (in 1859) to get to Earth?
What technology did it affect?
14
15
16
17
How long is the Sun’s sunspot cycle?
(time)
In what year did the last solar maximum occur?
18
What force causes the superheating of the corona?
19
How often does a solar eclipse occur on the Earth?
20
21
If you stayed in one place on Earth, how often would
a solar eclipse occur?
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
Answer
Name:
KEY
Pd.
Date:
The Universe
Astronomy
– Secrets
Header
of the Sun
Follow along with the video and answer the questions. The questions are in order of their appearance in the show.
#
1
Question
What 2 elements make up most of the Sun’s mass?
hydrogen & helium
2
What type of star is the Sun?
yellow dwarf
3
If the Sun were made of wood and burned, how long
would it take to burn out?
What is the process by which the Sun produces
energy (heat/light)?
What are the particles called that bring heat and light
from the center of the Sun to Earth?
How long does it take light that leaves the Sun to
reach Earth?
What drives all outbursts of explosions on the Sun?
5000 – 6000 years
8
What evidence do scientists see on the Sun that
proves the existence of many magnetic field lines?
coronal loops
9
solar quakes
10
What results when a high energy flare shoots enough
material back towards the Sun’s surface?
What is a CME?
11
What happened to Mars’ atmosphere?
due to lack of a strong magnetic field, it was blown
away by CMS’s over time
12
What is the trigger for most solar magnetic storms?
sun spots
13
What evidence do we see in the sky when the solar
magnetic storms break through our magnetic shield?
How long did it take for the fastest coronal mass
ejection ever recorded (in 1859) to get to Earth?
What technology did it affect?
auroras
11 years
17
How long is the Sun’s sunspot cycle?
(time)
In what year did the last solar maximum occur?
18
What force causes the superheating of the corona?
sound waves and convection cells
19
How often does a solar eclipse occur on the Earth?
every 1.5 years
20
300 years
21
If you stayed in one place on Earth, how often would
a solar eclipse occur?
When will the Sun die?
22
What will the Sun expand to?
red giant
23
What will happen to Earth’s orbit?
it will widen as the Sun expands
24
About what size will the Sun be once it has cast off its
outer shell?
the size of the Earth
4
5
6
7
14
15
16
Answer
nuclear fusion
photons
8 minutes
magnetism
coronal mass ejection
less than 18 years
telegraphs
2001
in about 5 billion years
Dottie Edwards, Strasburg High School, Strasburg, VA, Shenandoah County Public Schools