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Monday, September 21
1) Power Point study guide: “Factors That Influence the
Climate of the Earth (Part I)”
2) “The Earth-Sun Relationship and the Climate”
worksheet
Update Grade Sheet:
4) Unit One Test 09/10
Get out a pen or pencil, a blank sheet of Notebook
paper and clear everything else off of your desk.
Melbourne, Australia
What appears to be
unusual about
Melbourne’s annual
climate, relative to
our annual climate
patterns?
FACTORS THAT INFLUENCE THE
CLIMATES OF THE EARTH
MAIN IDEA: Over the next two day we are going to
identify and examine the various factors that influence the
“climate” of a region.
the earth’s “air”
the earth’s
“surface”
the earth’s
“living organisms”
the earth’s “water”
DIRECTIONS: Write and circle a #2 and your heading at the top of
your study guide. We will be completing only the front side today.
Climate is a significant factor in describing the geography
of places/ regions on the earth. Why?
Because the climate of a place/ region affects
the way that people in an area live!
Remember, what we are interested in is how people
adapt to their unique physical environment.
Let’s first start by examining the difference between
“weather” and “climate”
(they describe two different things):
Weather: describes conditions of the atmosphere in one
place during a short period of time.
“Weather” describes what it is like outside right now:
hot, cold, dry, rainy, humid, cloudy, sunny, etc).
“Weather” can suddenly change from day to day.
Climate: describes the weather patterns typical for an area
over long periods of time.
Unlike “weather”, climate does not suddenly change from
day to day.
Summer
Winter
Fall
Spring
Think of South
Texas’ “climate”
in terms of its
seasons.
Today we are
going to examine
one of the main
factors that
influences the
climate of the
Earth.
It takes 365 days for the earth complete one orbit around
the sun.
However, as the earth orbits the sun are the direct rays of the
sun shining on the same line of latitude at every date of the
year? Why?
…because the earth rotates 23.5° on its axis.
As a result, as the Earth orbits the sun, different regions
(latitudes) of the Earth receives more of the sun’s direct
rays throughout the year.
On June 21 which hemisphere would have a warmer
climate? Why?
June 21
December 22
On June 21 which hemisphere would have a warmer climate? Why?
* The Northern Hemisphere– the Northern Hemisphere is receiving
more of the direct rays of the sun and thus more of the sun’s energy'.
June 21
December 22
MAIN CAUSE OF THE EARTH’S CHANGING
SEASONS / ANNUAL CLIMATE
Because the earth is tilted on its axis, not all places
(latitudes) on earth receive the same amount of
direct sunlight as it orbits around the sun.
On December 22 which hemisphere would have a warmer
climate? Why?
June
June
21
21
December 22
On December 22 which hemisphere would have a warmer climate?
* The Southern Hemisphere. Why?
June 21
December 22
Because the Southern Hemisphere is receiving more
of the Sun’s direct rays and as a result would be
warmer than the Northern Hemisphere.
On the two dates below, what parts of the earth are receiving the
direct rays of the sun? (In other words, which latitudes of the earth
are closest to the sun?)
June 21
December 22
Solstice: the day on which the direct rays of the sun are at either the
Tropic of Cancer (23.5°N) or the Tropic of Capricorn (23.5°S).
June 21
December 22
These lines of latitude are the farthest north (23.5°N) and
south (23.5°S) that receive the direct rays of the Sun.
The Solstice also marks the beginning a new season (“Summer” or
“Winter”) in the Northern and Southern Hemispheres
June 21
December 22
As the month of September goes on, what is happening to
the length of the day (in terms of daylight)?
http://www.sunrisesunset.com/custom_srss_calendar.asp
What about for this city?
On December 21, which hemisphere would have the
longest day (in terms of daylight)?
On December 21, which hemisphere would have the
longest day (in terms of daylight)?
Has daylight 24 hours a day
Has darkness 24 hours a day
Has darkness 24 hours a day
Has daylight 24 hours a day
On March 21 and September 23, what parts (latitudes) of the Earth
are receiving the direct rays of the Sun?
March 21
June 21
December 22
*
September 23
Equinox: the two dates when the sun’s rays are shining
directly on the equator.
March 21
June 21
December 22
*
September 23
The Equinox also marks the beginning a new season (“Spring” or
“Fall”) in the Northern and Southern Hemispheres
March 21
June 21
December 22
*
September 23
Parts of the Earth
receiving the direct
rays of the Sun
though out the year.
?
June 21
March 21
September 23
December 22
Label the “seasons” for the
Northern Hemisphere and what
line of latitude would be
receiving the direct rays of the
Sun.
March 21
December 22
June 21
*
September 23
* Labels of seasons below
refer to the seasons for
the Northern Hemisphere
March 21
“Spring” Equinox
December 22
“Winter” Solstice
June 21
“Summer” Solstice
*
Remember, the
“seasons” would be
reversed for the
Southern Hemisphere.
September 23
“Fall” Equinox
Tomorrow we will identify and examine the other factors that influence
the climate of a region/ place.
the Earth’s
orbit on its axis
around the Sun
FACTORS THAT
INFLUENCE
CLIMATE
DIRECTIONS:
1) Place your study guide in section II of your Notebook.
We will finish it tomorrow.
2) Get out a blank sheet of paper write your heading and
the following title:
“ The Earth-Sun Relationship and the Climate”
DIRECTIONS:
3) Answer the questions on the handout provided to you
on your blank sheet of paper. Make sure you read the
directions! Due before you leave.
March 21
December 22
June 21
*
September 23
THE END
Melbourne, Australia
What information is
this graph
illustrating?
…the Earth’s orbit around the Sun!
* Labels of seasons below
refer to the seasons for
the Northern Hemisphere
March 21
“Spring” Equinox
December 22
June 21
???
*
September 23
* Labels of seasons below
refer to the seasons for
the Northern Hemisphere
March 21
“Spring” Equinox
December 22
June 21
“Summer” Solstice
*
September 23
???
* Labels of seasons below
refer to the seasons for
the Northern Hemisphere
March 21
“Spring” Equinox
December 22
???
June 21
“Summer” Solstice
*
September 23
“Fall” Equinox
FACTORS THAT INFLUENCE THE
CLIMATES OF THE EARTH
MAIN IDEA: Identify and describe how annual changes in
the relationship between the Earth and the Sun affect the
climate.
Parts of the Earth
receiving the direct rays
of the Sun
June 21
“Summer” Solstice
* Labels of seasons refer to
the Northern Hemisphere
Parts of the Earth
receiving the direct rays
of the Sun
June 21
Summer Solstice
September 23
“Fall” Equinox
* Labels of seasons refer to
the Northern Hemisphere
Parts of the Earth
receiving the direct rays
of the Sun
June 21
Summer Solstice
September 21
Fall Equinox
December21
“Winter” Solstice
* Labels of seasons refer to
the Northern Hemisphere
Parts of the Earth
receiving the direct rays
of the Sun
June 21
Summer Solstice
September 23
Fall Equinox
March 21
“Spring” Equinox
December 22
Winter Solstice
* Labels of seasons refer to
the Northern Hemisphere
Parts of the Earth
receiving the direct rays
of the Sun
?
June 21
Summer Solstice
September 23
Fall Equinox
March 21
Spring Equinox
December 22
Winter Solstice
* Labels of seasons refer to
the Northern Hemisphere
Where on the earth and on what dates would have an equal
amount of daylight and night hours? Why?
What dates have an equal amount of daylight and night? Why?
June 21 and September 21; because the direct rays of the sun are on
the equator.