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Interstellar Inquiry #09: The Sun Kaylen 25-26

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Last updated about 2 hours ago
19 questions
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If you need help with this assignment, please watch the class recording

If you need help with this assignment, please watch the class recording

Question 1
1.

Question 2
2.


We've talked about the Sun in other units. What are some things you all ready know about the Sun?

Question 3
3.

Question 4
4.

The images above show colorized X-ray images of the Sun over the course of March, June, September, and December 1999.

What do you notice about the Sun over the course of a year?

Question 5
5.

On the left is a colorized X-ray image of the Sun. On the right is a visible light image of the Sun.

Notice the dark spots on the visible light image.

How are the X-ray and visible light images related?

Question 6
6.
Heat is transferred one of 3 ways. Match the definition to the correct term.
Other Answer Choices:
Heat is transferred through molecular motion in a fluid (liquid, gas, or plasma)
Heat is transferred indirectly in the form of waves or particles
Heat is transferred from one substance to another through direct contact
Question 7
7.

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Question 8
8.

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Question 9
9.

Question 10
10.

Question 11
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Question 12
01:02
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Question 13
02:31
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Question 14
02:55
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Question 15
15.
The Sun also produces its own magnetic field.

Put the labels on the Sun's North and South poles.
Other Answer Choices:
South Pole
North Pole
Question 16
16.

Question 17
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Question 18
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Question 19
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Before we jump into Unit 5, please rate yourself on the Unit 5 objectives from 1 (just starting) to 5 (mastered it!)

You may need to scroll horizontally to see all options
1 - getting started
2
3
4
5 - mastered it
Identify the regions of the Sun
Discuss the structure and composition of the Sun.
Explain how the Sun produces energy
Examine solar activity, such as sunspots and solar flares.
Give examples how solar activity affects the Earth
The Sun is an average low mass star. Think back to Unit 2 and the life cycles of low mass stars.

Put the stages of the Sun's life cycle in order.
Planetary Nebula
Glowing shell of gas and plasma around a dying star
Red Giant
Having run out of hydrogen, star fuses helium into carbon and the resulting energy causes the star to expand
Stellar Nebula
Formed in a cloud of gas and dust
White Dwarf
Hot, dense remnant of a star
Average Star
Fusing hydrogen into helium in its core
Use the interactive diagram above to explore the part of the Sun.

Then match the layers of the Sun's interior to its description
Convective Zone
Center of the Sun where nuclear fusion takes place
Core
Transports energy from the core through radiation
Radiative Zone
Outermost region where hot plasma carries energy toward the Sun's surface, cools, and sinks back down
Match the layers of the Sun's exterior to its description
Chromosphere
Visible "surface" of the Sun
Corona
Thin lower atmosphere of the Sun
Photosphere
Sun's upper atmosphere that extends for at least 2,000 km
The Sun's photosphere is covered with "granules" where the brighter regions indicate hot, rising gas and the darker regions indicate cooler, down-welling gas.

What type of energy transfer creates these "granules"?
Conduction
Radiation
Convection
How is the Sun's energy transferred to Earth?
Conduction
Convection
Radiation
Question 11
11.
What interaction would occur between the following charges?

Positive & positive __________
Positive & negative __________
Negative & negative __________
Question 12
12.

Question 13
13.

Question 14
14.

However, the Sun is made of plasma, not solid rock and liquid metal, so its magnetic field behaves differently than the Earth's.

The plasma at the Sun's equator travels faster than the plasma at the Sun's poles, causing the magnetic field to become twisted.

The Sun's magnetic field functions differently than the Earth's.
True
False
Question 17
17.

Question 18
18.

Question 19
19.

What does a flowing electric current create?
Electric charge
Magnetic field
Thermal energy
What generates Earth's magnetic field deep inside the Earth?
Solid rocks
Liquid metals
Gases
What does the protective layer created by Earth's electromagnetism do?
Protects us from meteors
Increases the gravitational pull
Shields us from harmful radiation
Magnetic field lines are visible to the human eye.
True
False
What do the white closed magnetic field lines do?
Extend far into space
Loop around and close at the solar surface
Connect to different planets
What can happen when magnetic field lines interact with each other?
Coronal mass ejections (CMEs) and solar flares
New stars
Nothing