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The Sun
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February 20, 2015
5 Years of Sol
The Layers of the Sun
Fill it In, Fill it In
What's Going On?
Learning Goal I will be able to identify the key features of the Sun, and explain how the Sun affects the Earth.
The Sun
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February 20, 2015
Housekeeping
The Sun
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February 20, 2015
Five Years of Sol
Nasa's Solar Dynamics Observatory (SDO) has been capturing images of the Sun more than once every second for the past 5 years.
On February 11, 2015 NASA released a video showcasing highlights from the last 5 years of sun watching.
The Sun
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February 20, 2015
Five Years of Sol
Can you name any of the things you saw in the video?
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core
photosphere
corona
radiative zone
solar flares
convective zone
chromosphere
sunspots
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Our Sun
Our sun is a ____________‐sized star, and is the
____________ of the solar system. It formed inside a
____________ and began shining approximately __
______________ years ago. Our Sun may continue to shine for
another __ _____________ years.
The Sun
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Our Sun
The sun emits energy in the form of ________, __________
and other types of radiation including
______________________ radiation.
The Sun
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Our Sun
The Sun is composed mainly of ________________ and
____________, and produces energy through the process of
______________ ____________ at its core.
The Sun
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Our SunThe Sun has __ layers. Starting from the centre and moving
outwards, the layers are: the ________, the
__________________ zone, the ____________________ zone,
the ____________________, the ________________________
and the ____________.
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The Layers of the Sun
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The Core
The ________________ layer of the Sun and the site of
______________ fusion. The core is an area of very
high ________________ where temperatures can
reach ____ ______________oC.
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The Radiative ZoneSurrounds the ________ and extends three quarters of
the way to the ______________.
________ and __________ emitted from the core
move through this layer. Light takes at least
___________ __________ to travel from the core
through the radiative zone.
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The Convective Zone
Outside the ________________ zone. __________
circulate here and bubble towards the surface, carrying
____________.
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The PhotosphereConsidered the ________________ between the
inside and outside of the Sun.
This is the part that we see from __________ and gives
the sun its ____________ colour.
The lowest temperatures at this layer are ________ oC.
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The Chromosphere
The ________ layer __________ the photosphere.
______________ in colour but only seen during a
_________ ______________.
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The CoronaThe _________________ layer, extending
________________ of kilometers beyond the
chromosphere.
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Solar Eclipse
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Surface Features of the Sun
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SunspotsAppear as ________ patches on the
______________________ and are ____________
than the surrounding areas.. They come and go and
each is larger than __________.
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ProminencesLarge, ____________ stream of particles extending
outward from the ___________________ into the
____________. They may last for many __________.
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Solar FlaresMassive __________________of solar __________ at
Sun’s surface. Solar flares fling hot ____________ out
into space and can damage orbiting
____________________ and ____________________
transmission lines on the ground.
The Sun
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February 20, 2015
Solar Flares
An extremely powerful solar flare is called a
______________ ________ ________________.
These flares can reach Earth over the course of about
__________ days where it meets Earth’s
________________ field. When the flare reaches the
field, the energy is diverted away from the planet’s
______________ resulting in vivid and active
______________.
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The Sun's Effects on the Earth
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Solar WindThe incredible amounts of ________ at the surface of
the Sun produces a steady stream of
__________________ particles that emanates out
from the Sun in all directions.
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Aurora Borealis
Commonly known as the ________________
____________, aurora borealis is created by the
__________ ________, and results in displays of
________, ____________ and ______ light.
The Sun
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February 20, 2015
Aurora Borealis
The aurora borealis is produced when the charged
__________________of the __________ ________
collide with Earth’s ____________________. These
particles are ______________ by Earth’s
________________ field and are swept toward the
__________ .
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Aurora BorealisFrom Space!
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February 20, 2015
Aurora BorealisFrom Space!
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February 20, 2015
Aurora Borealis
From Space!
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Fill It In, Fill It In
Group up with 1 or 2 other people and try and fill in the Sun note.
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Homework!
Pg. 321: 1 6Add to your term table:core radiative zone convective zone
photosphere chromosphere corona
sunspot prominence solar flare
coronal mass ejection
Fill in The Sun note
Attachments
1 Intro to Space 1 Contact Opening Scene.mp4
Intro to Space The Beginning of the Universe.mp4
1 Intro to Space 1 Celestial Objects.mp4
1 Intro to Space 2 How Many.mp4
1 Intro to Space 4 What Makes a Planet.mp4
1 Z Intro to Space How Many Universes.mp4
A Intro to Space 1 Contact Opening Scene.mp4
B1 Stars Star Size Comparison.mp4
B1 (Stars) Star Types.mp4
B1 (Stars) Massive Stars in the Milky Way.mp4
B1 (Stars) Tracking Stars Orbiting the Milky Way's Central Black Hole.mp4
B2 (The Solar System) 5 Years of the Sun.mp4
B2 (The Sun) 5 Years of the Sun.mp4
B2 (The Sun) Solar Flare.mp4
B2 (The Sun) Prominence.mp4
B2 (The Sun) Corona.mp4
B2 (The Sun) Solar Eclipse.mp4
B2 (The Sun) Aurora Borealis.mp4
B2 (The Sun) Aurora Borealis from Space.mp4