The Sun
Name:
What is the sun?
Label the layers of the sun.
Describe each layer of the sun below.
Corona: _______________________________________________________________
______________________________________________________________________
Chromosphere: _________________________________________________________
______________________________________________________________________
Photosphere: ___________________________________________________________
______________________________________________________________________
Convection Zone: _______________________________________________________
______________________________________________________________________
Radiative Zone: _________________________________________________________
______________________________________________________________________
Core: _________________________________________________________________
______________________________________________________________________
© Addie Williams 2015
Sun Facts:
Diameter::_________________________ Mass: ______________________________
Temperature at the surface: ______________________
Composition: ________________________________________________________
On average, how far is the Earth from the sun? ____________________________
How often does the Earth revolve around the sun? _________________________
Solar Heat - Describe how the sun generates energy.
Draw four sunspots on the sun diagram.
What are sunspots:? ___________________________________
____________________________________________________
How often do they occur? ______________________________
Draw a solar flare on the sun diagram 
What are solar flares:? ________________________________
___________________________________________________
___________________________________________________
How do solar flares impact Earth? _______________________
____________________________________________________________________
How are solar flares different from solar prominences? ______________________
____________________________________________________________________
____________________________________________________________________
© Addie Williams 2015
The Sun ~ Extra Information
Why is the sun so important to us on Earth?
How did the sun get its name?.
Write down four more facts about the sun in the boxes below.
© Addie Williams 2015
The Sun - ANSW ER KEY
What is the sun?
An average size star at the center of our solar system that provides heat and
energy for the Earth.
Label the layers of the sun.
corona
chromosphere
photosphere
convection zone
radiative zone
Core
Describe each layer of the sun below.
Corona: the outermost layer of the sun’s atmosphere we can only see it during an
eclipse
Chromosphere: the layer in the sun’s atmosphere between about 250 miles (400 km)
and 1300 miles (2100 km) above the solar surface (the photosphere).
Photosphere: the apparent yellow surface of the sun
Convection Zone: the heat from the core rises to the top of the convection zone,
while cool areas sink.
Radiative Zone: . Energy produced in the core radiates outward to the edge of the
sun through this area of the sun.
Core: the center of the sun and produces the star's light and heat through nuclear
fusion. The temperature in the core is around 28,000,000°F or 15,700,00°C.
Sun Facts:
Diameter: 1,392,684 km
Mass: 1,989,100 x 1012 billion kg (333,060 x Earth)
Temperature: 5500 C at the surface
Composition: hydrogen & helium
On average, how far is the Earth from the sun? 150 million km (I Astronomical Unit)
How often does the Earth revolve around the sun? Every 365.25 days
Solar Heat - Describe how the sun generates energy.
There is intense pressure and heat at the sun’s core. The pressure forces the
hydrogen atom to fuse together in a nuclear reaction. This reaction produces
energy in the form of heat and light. The sun’s energy also creates a solar wind with
warms the Earth and influences our weather.
Draw four sunspots on the sun diagram.
What are sunspots:?
Cool, dark areas on the surface of the sun.
How often do they occur?
Sunspots have an 11 year cycle.
What are solar flares:?
Violent explosions during periods of high solar activity that release huge amounts
of solar energy into the sun’s atmosphere.
How do solar flares impact Earth?
They can affect satellites, radio and cell communication and are
responsible for creating the aurora borealis. (Northern &
Southern lights)
Draw a solar flare on the sun diagram.
How are solar flares different from solar prominences?
A solar prominence is an arch of plasma and gas that erupts from the surface of
the sun. A solar flare comes from the sun’s atmosphere.
© Addie Williams 2015
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Artist Credits
Copyright © 2014, Tracee Orman